What are Plano Lenses?

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What are Plano Lenses?

By Caitlin Biwer

Reviewed by

Updated On Apr 27, 2023

Discover why plano lenses are great for the workplace, sports, or to provide a realistic aesthetic to your look!

SUMMARY

Plano lenses are eyeglasses lenses that don’t offer any vision correction.

They are generally used for aesthetic, safety and eye health reasons.

Glasses have many benefits, even if you have perfect vision. In this article, we will explain plano lenses, demo lenses, and the difference between plano lenses and prescription lenses.

Discover why plano lenses are great for the workplace, sports, or to provide a realistic aesthetic to your look!

What are Plano lenses?

Not all glasses require corrective lenses, and when this occurs, glasses can be fitted with two types of non-prescription lenses: demo or plano lenses.

Furthermore, plano lenses are optical lenses that do not have any value power. Therefore, they do not help correct your vision.

In the eyewear industry, plano-convex lenses are described as flat and do not refract or focus light through the lens.

So if you have blurry vision, see double or can’t read the words right in front of you, then plano glasses are not going to help.

We recommend that you have an eye test to find out if you do not require any prescription to correct your vision.

For example, you may need a prescription from your eye doctor to correct astigmatism to improve distance vision (progressive lenses) or you may even need a prescription suitable for reading glasses.

If you notice any changes in vision or have not had an eye test with your doctor in two years, we recommend booking an appointment.

What does Plano mean on eye prescription?

The word plano is Latin for ‘flat’, and if this is found in the SPH section of your prescription, it means you do not require nearsighted or farsighted correction.

You will know if you require plano lenses if your eye prescription refers to ‘plano’, ‘PL’ or ‘0.00’, found under the sphere box (SPH) measurement section.

DID YOU KNOW?

If 0.00 is written on your eyeglass prescription, this is equivalent to plano. This indicates that there is no refractive power and no corrective power is needed. Therefore, you do not have any distance problems with your sight, astigmatism or anything to be corrected.

What are demo lenses?

Another type of non-prescription is demo lenses, and they are mainly used for demonstration purposes, such as for glasses displays in retail stores.

Demo lenses can help you understand what prescription glasses or sunglasses look like before you purchase them.

Plano vs demo lenses

Plano and demo lenses are not the same and should not be confused. Plano lenses are often made from CR39 lens material and are thicker than demo lenses.

In addition to this, extra protective lens coatings can be added to a plano lens that can’t be added to demo lenses, like the following:

Anti-scratch coating
Blue light filter
Tinted lens coatings

Demo lenses are thinner, do not have any additional lens coatings, and sometimes also have printed brand labels on the lens. They are like a simulation of what the glasses can look like.

What are Plano lenses used for?

The various reasons why you’d want or need to wear plano glasses are:

Aesthetic reasons: If you’re looking to change up your look, make a fashion statement, or add the finishing touch to your outfit, you might opt for plano lenses. They can be helpful in boosting a look or helping to frame an outfit without any vision correction.
Safety reasons: In many workplaces, companies have to follow protective eyewear regulations to help prevent eye-related injuries. Safety glasses can help protect from hazardous elements such as chemicals. During the working day, you can also protect your eyes from glare or blue light emitted from digital devices with blue light glasses. Once you have chosen a pair of glasses you like, you can add blue light to them.
Eye health issues: If you are blind in one eye or suffer from eye health issues, you may benefit from protecting your eyes with plano lenses.

Do you need Plano lenses?

If you are looking for eyewear for any of the reasons mentioned previously, then you may need plano glasses.

You can wear any style of glasses or sunglasses with plano lenses and benefit from protective lens filters, such as UV protection. Plano lenses in glasses can also serve as protective eyewear, whether or not you need vision correction or prescription lenses.

You can even find plano contact lenses. So what does plano mean in contact lenses? Plano contact lenses are the same as plano in glasses; they do not help correct visual impairments.

Usually, plano-coloured contact lenses fall into this category of non-prescription contacts that people wear mostly for cosmetic purposes.

Wear Plano glasses

Don’t need prescription glasses but still want to benefit from the trends, styles and protective lens coatings that eyeglasses and sunglasses provide? Plano lenses are what you are looking for.

Eyewear with plano lenses does not have any power values for vision correction and can also be used as PPE (personal protective eyewear).

Whether you need to protect your eyes at work, on holiday or simply want to look fashionable, you can try to wear plano lenses.

You can find a variety of eyewear with quality protective filters to help correct vision or improve your look with SmartBuyGlasses.

We recommend visiting your local optometrist for an up-to-date prescription to ensure you do not require single-vision lenses or progressive lenses with corrective power. If you need some quick advice, contact our online optician!

Glasses Measurements: Everything You Need To Know

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Glasses Measurements

It's important to know your glasses measurements when buying eyewear online. This useful guide explains the significance of the numbers printed on your glasses and how to take the measurements yourself.

In the past, shopping for eyeglasses involved tedious trips to eyewear stores, fitting frames, and perusing a few shelves of glasses. That’s not so much the case anymore; online retailers like SmartBuyGlasses have been established for years, and, as a result, there is a near-unlimited amount of colours, sizes, and eyewear designs on sale.

When buying online, knowing your glasses’ measurements is crucial. That is why we’ll explain what glasses measurements are and how to find them.

Eyeglass size explained

You may have noticed all glasses have three numbers engraved on the temples. They represent the glasses’ measurements: the lens width, bridge size, and temple arm length, respectively. Dots, dashes, or vertical bars usually separate these numbers. Some frames may have a fourth number, which refers to the height of the frames.

In some cases, acetate frames will have the eye size and bridge size on the nose pads on a plastic frame. All these glasses measurements are measured in millimeters (mm).

DID YOU KNOW?

Pupillary distance is the distance between your pupils. To have the clearest vision, the distance between the center of the left lens and the right lens should be the same as the distance between your pupils.

Eyeglass frame measurements

The frame width is the horizontal measurement of the frames, including hinges or designs that stick out at the sides. To measure the width of the frames, take a measuring tape or a ruler and measure the entire horizontal front of the frame from the further extended point to the other.

Eyeglass lens measurements

Lenses can be measured both in height and width. The lens height is the vertical measurement of the eyeglass lenses. This is important for bifocal lenses and progressive lenses. Lens width refers to the width of the lenses, which must be measured horizontally.

This typically ranges from 40 mm to 60 mm. To take these measurements, place the measuring tape on the lenses, first vertically, then horizontally, and only measure from one side of the lens to the other, ensuring no part of the frames is included.

How to measure your bridge size for glasses

The bridge size is the distance between the two rims or lenses of the eyeglasses where the nose pads are located. It typically ranges from 14mm to 24mm. Place the measuring tape right between the two lenses to measure the bridge and see how many millimeters are between the nearest points.

How to measure your temple length for glasses

This refers to how long the temple is. Measure your temples from the hinge to the tip, and you’ll come up with the temple length. Usually, it’s between 120mm and 150mm.

How to find out PD for glasses

The pupillary distance is another crucial measurement when ordering glasses online. To find out your pupillary distance, you can either use our online tool or do it manually with the help of a ruler.

Step 1: Standing in front of a mirror, hold the ruler up to the bridge of your nose or against your eyebrows.

Step 2: Close your right eye. While looking in the mirror, align the ruler’s zero with your left pupil.

Step 3: Keeping the ruler still, close your left eye and open your right eye.

Step 4: Read the number aligned with your right pupil’s center. This number is your pupillary distance.

Step 5: Repeat the process to ensure you get the most accurate result.

If you struggle doing it yourself, you can ask a friend to help you with this and check out our quick and easy tutorial.

I’ve measured my glasses

Now that you have all the information on your glasses’ measurements and know how to take them, it will be way easier when shopping online. Glasses’ measurements won’t be a mystery anymore, and you will confidently be able to choose the right pair of glasses.

If you need help determining what glasses size will fit best, we have an easy guide to help with that. You will have to measure your temples from one side to the other and check out our size table to find the recommended size based on your measurements.

If you have more questions regarding your glasses size or prescription, head out to our Optical Center. Our informative articles will help answer your questions, or ask one of our certified online opticians to clarify your doubts.

What is the Fastest Way to Heal a Scratched Eye?

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What is the Fastest Way to Heal a Scratched Eye?

A scratched cornea is a small but painful injury. Learn how to deal with one and ensure it heals as quickly as possible.

Disclaimer: We at SmartBuyGlasses are not medical doctors. This article contains general advice. If your scratched eye is weeping or extremely painful, consult your doctor or an eye care professional for treatment.

What is a scratched cornea?

A scratched eye is quite a common injury that, thankfully, usually heals itself. The specific part of the eye concerned is the cornea.

The cornea is the transparent front part of the eye that covers the iris and the pupil. It allows light to enter and helps the eye to focus.

It is the most protrusive and exposed part of the eyeball, so it can become damaged or scratched relatively easily in a number of ways.

A scratched cornea is also known as a corneal abrasion. Although corneal abrasions are generally minor eye injuries, they can still cause significant pain.

If left untreated, an eye infection or corneal ulcer can develop, so it’s important to know how to deal with one.

Corneal abrasion causes & risk factors

Corneal abrasions can occur quite easily through a combination of your own hands and foreign objects coming into contact with the eyeball.

Accidental poking with a pen, makeup brush, or fingernail is a common cause, as are small particles like sand, dust, or ash entering the eye.

We often instinctively rub our eyes when this happens, which can create friction between the small particles and the cornea, causing an abrasion.

Even without the presence of corneal foreign bodies, rubbing your eyes too hard can scratch the cornea. Overuse of contact lenses or improper contact lens hygiene is another risk factor.

Playing sports or engaging in other physical activities without proper protective eyewear leaves you open to the possibility of a scratched cornea, while they can also stem from certain types of eye infections.

Even eye surgery can be responsible for a corneal abrasion if sufficient eye protection is not used.

DID YOU KNOW?

Vitamin C boosts your immune system, helping your body to fight off infections and heal wounds quickly.

Corneal abrasion symptoms

It’s possible to scratch your cornea without immediately realising that it has happened. You will likely feel the effects of it, although they too can take some time to set in.

The first symptom is usually pain when opening or closing the eye, or the feeling that there is something stuck in it.

Some of the following symptoms will also likely be present in the case of a corneal abrasion:

Watery eyes or excessive tearing
Redness in the eye
Sudden sensitivity to light
Swelling of the eyelids
Sudden blurred vision or loss of vision
Eye twitching
Nausea
Dull headache

How to deal with a suspected corneal abrasion

Experiencing some of the above symptoms is not a surefire indicator that your cornea is scratched, as they can also be symptoms of other, unrelated eye problems.

However, a combination of them after exposure to some of the risk factors cited in this article means there’s a good chance that you have indeed scratched your eye.

If you suspect that you may have a corneal abrasion, here are some steps you can take to prevent the situation from worsening:

Consult an eye doctor
Flush the eye out with water or saline solution, without rubbing it (but no more than once or twice)
Wear sunglasses to reduce light sensitivity
Use a cold compress to relieve swelling, pain, and discomfort
Keep your face and eyelids clean
Rest your eyes and avoid straining them

You may be tempted to try and take action to minimise your pain or discomfort, but you could end up doing more harm than good.

If you suspect your cornea is scratched, make sure you go see your doctor and avoid doing the following:

Don’t rub your eye
Don’t try to remove anything from your eye with tweezers or any other instruments
Don’t apply an eye patch unless instructed to do so by an eye doctor
Don’t wear eye makeup
Don’t wear contact lenses until your eye doctor tells you it’s ok
Don’t try to flush out your eye with anything other than clean water or sterile saline solution

How to treat a scratched cornea

The steps above are to be followed as soon as you suspect you may have a corneal abrasion and should help relieve irritation.

As they’re often mild to moderate, most corneal abrasions heal by themselves, so medical intervention is not always strictly necessary.

But we recommend seeing your doctor if it doesn’t begin to subside within a day or two.

If there is continued eye pain, a change in vision, or light sensitivity after the scratch or eyeball trauma, seek emergency care.

A foreign object lodged in the eye, a loss of vision, or a high-force impact on the eye may require a visit to the emergency room.

Medical treatment

An eye doctor will be able to remove any small object that may be lodged in the eye, and also examine it for damage and check your vision.

If they need to remove an object, they’ll apply topical anesthesia on the eye so it won’t hurt, and use an appropriate instrument to extract the particle.

They may then prescribe you antibiotic eye drops or ointment to prevent infection, or pain relievers.

Ciprofloxacin or moxifloxacin eye drops are common choices for this. In some cases, the doctor may apply a bandage contact lens or therapeutic contact lens.

They protect the cornea, relieve pain associated with blinking, and aid the cornea’s healing process.

Recovery time

The saying goes that time heals all wounds, and with most eye scratches, that rings true.

In the majority of cases, there is only a minor scratch, so generally, the eye heals in 24-48 hours. Following the guidelines laid out in this article should help the injury subside in this timeframe.

If you’ve suffered a scratched eye and are still experiencing symptoms after 48 hours, consult an eye doctor, and they will examine your eye and treat the injury accordingly.

Prevention is better than a cure

While there are best practices you can follow when you have a scratched eye, there is no immediate fix.

The best way to avoid the pain and discomfort that come with a corneal abrasion is to take appropriate precautions to prevent one from happening in the first place.

In outdoor or work situations where there is a risk of foreign matter like metal particles or sand entering the eye, wear safety glasses.

The same applies to playing sports with an elevated risk of something coming into contact with the eyes.

In the event that something does enter your eye, resist the urge to rub it. Instead, blink several times or gently pull the upper eyelid over the lower eyelid.

Rinsing with water or saline solution can flush the object out before it has time to do any damage.

A small scratch on your eye may heal relatively quickly, but if you can avoid one altogether, you’ll save yourself some pain.

Eye Shapes

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Eye Shapes

You may never have consciously noticed it, but eye shape can have quite an impact on how someone looks. Learn all about the different shapes in this article.

If you were asked to describe what someone looks like, what features would you include in your description?

For many, eye colour would be one of the first things mentioned. It is a very noticeable aspect of a person’s look, and can often be the first thing that strikes us when meeting someone new.

Although it receives less attention, there is another ocular trait that impacts physical appearance and natural beauty; eye shape.

Maybe you’ve occasionally remarked that someone has particularly wide, deep-set, or narrow eyes, but did you know there are actually ten distinct eye shapes that categorise this facial feature?

The 10 different eye shapes

As opposed to face shapes (which are very loosely divided into four different options), different eye shapes are defined in more detail, as evidenced by the larger number of categories.

The eyelids, openness and angle of the eyes, and other factors are involved in the classification of eye shapes.

These small details are perhaps not something you consciously recognise, but they definitely have an effect on our overall perception of people’s faces.

Read up on the characteristics of each eye shape below, and you’ll soon be unwittingly using your newfound knowledge to identify the shape of every pair of eyes you see!

Almond shaped eyes

As the name suggests, almond eyes have an elongated, oval/almond shape and taper off significantly toward the corners.

The defining feature of almond shaped eyes is that the iris touches both the top and bottom eyelid. This means that the sclera (the white part of the eye) is not visible directly above or directly below the iris.

Round eyes

With round eyes, the white of the eye is visible both above and below the iris, which can make them stand out more as a facial feature.

The inner and outer corners have a less prominent taper than those of almond eyes. Round eyes also have a visible crease in the skin of the upper eyelid.

Protruding eyes

Some people’s eyeballs are naturally set further forward in the eye socket. The result of this is protruding eyes. The shape of the eyeball itself is more prominent, making the eyes look rounder.

With protruding eyes, a large proportion of the white of the eye is visible, as the eyelids typically do not reach the iris.

Monolid eyes

The eyelids are the determining factor here, as they have no crease or fold. This sets the monolid eye shape apart from other eye shapes and gives them a very distinct appearance.

Monolid eyes appear flat as the smooth eyelid does not cling tightly to the eyeball. It is common for people of Asian descent to have monolid eyes. They are also called epicanthal folds.

Downturned eyes

The main characteristic of downturned eyes is the outer corners of the eyes. With most eye shapes, the outer corner is slightly higher than the inner corner.

With downturned eyes, it is level with, or slightly lower than the inner corner.

The outer edge of the upper eyelid usually also slopes downwards more steeply than with other eye shapes.

DID YOU KNOW?

The rarest eye shape differs depending on where you are in the world, as some eye shapes are more commonly found in certain populations than others.

Upturned eyes

Unsurprisingly, upturned eyes are the opposite of downturned eyes. In this case, the outer corner is positioned higher than the inner corner.

The overall shape is similar to almond eyes, but with the added lift in the outer corner.

Upturned eyes are sometimes referred to as “cat-eyes”, and there is a clear resemblance between this eye shape and cat-eye glasses frames.

Close-set eyes

Rather than the shape or angle of the various parts of the eye, close-set eyes are defined by their position in relation to one another.

Eyes are generally considered to be close-set if the distance between the inner corners (from one tear duct to the other) is less than one eyeball width.

Your eyes may be close-set while also having a round, almond, or any other shape.

Wide-set eyes

Once again, it’s all in the name. If the distance between your eyes is greater than one eyeball width, your eyes are considered to be wide-set.

Although particularly wide-set eyes can be a trait attached to certain medical conditions, some people’s eyes are simply further apart than others.

Deep-set eyes

With deep-set eyes, the eyeball sits further back in the socket, creating the opposite of the bulging appearance associated with protruding eyes.

As the eyes are further back in the skull, the brow bone has a more prominent, even protrusive look.

Hooded eyes

Hooded eyes occur when there is an overhang of skin on the upper eyelid.

This conceals the crease in the eyelid, with the excess fold of skin sometimes extending past the edge of the upper lash line, hence the name “hooded eyes”.

How do I find my eye shape?

Now that you’re up to speed on the different variations, you can determine your eye shape very easily by observing your eyes in the mirror.

Look straight ahead and also from different angles to take note of your eyes’ characteristics.

Do not attempt to open them wider or flex any muscles to alter their shape. Otherwise, you will not be able to determine your eye shape correctly.

Here is a brief run-through of the some different combinations of characteristics, and what eye shapes they indicate:

No visible eyelid crease – monolid eyes
Crease in eyelid, white visible above and below the iris – round eyes
Outer corners level with (or lower than) inner corners – downturned eyes
Flap of skin hiding the inward crease in the eyelid – hooded eyes
Top and bottom eyelids touching the iris, visible crease – almond eyes
Outer corners higher than inner corners with an upwards flick – upturned eyes
Prominent brow bone, round eyes with a lot of white visible – protruding eyes
Distance between eyes greater than the width of one eye – wide-set eyes
Distance between eyes less than the width of one eye – close-set eyes

Can eye shape affect vision?

The eye shapes detailed in this article refer to the appearance of the eyes and how they are positioned on the face.

Your eye shape is a genetic trait that has an aesthetic effect on your appearance, but generally does not affect vision. The shape of the eyeball itself, on the other hand, is the cause of some common vision problems.

Myopia, hyperopia, and astigmatism

An elongated eyeball is responsible for myopia (shortsightedness), causing blurry distance vision.

Conversely, if the eyeball is shorter than usual, it results in hyperopia (farsightedness), blurring objects in your near field of vision.

Both conditions are refractive errors, direct results of the shape of the eyeball. Astigmatism occurs when the cornea or the lens is irregularly shaped.

Exophthalmos

Exophthalmos is a condition that causes one or both of the eyes to bulge, and is often an indicator of hyperthyroidism, a serious condition with wider effects on overall health and quality of life.

Protruding eyes can be a natural aesthetic trait caused by the position of the eyeballs in the skull.

However, if you don’t have naturally protruding eyes and you notice that they appear to be bulging, see an eye doctor immediately.

Ptosis

Hooded eyes are a hereditary trait, but eyelids also tend to droop with age, sometimes leading to a condition called ptosis.

Ptosis occurs when the eyelid remains in a semi-closed position, or a flap of skin from the eyelid hangs over the upper lash line, obscuring vision.

If severe and left untreated, it can lead to vision problems like astigmatism or amblyopia. Ptosis can be surgically corrected, either for cosmetic reasons, or to prevent further vision obstruction or loss.

Can I change my eye shape?

In the vast majority of cases, there is no need to surgically alter your eye shape, although some people seek cosmetic procedures to achieve their desired aesthetic.

Applying mascara, dark eyeshadow, or other eye makeup is a much less drastic alternative for those who would like to try out a different look, but you’ll have to consult a different source if you’re looking for more detailed makeup tips.

Choosing glasses frames for your eye shape

When choosing a new pair of glasses, you should always take your face shape into consideration in order to get the most harmonious aesthetic results.

Eye shape has less significance in this regard, but there are certain frame styles that may complement your particular eye shape a little more than others.

If you have close-set eyes, a frame with a thin bridge will is a flattering option. If you’re on the other end of the scale with wide-set eyes, a chunkier frame would suit you well, and bright colours can draw attention away from the gap.

Square or round frames look great on round eyes, and for almond eyes, try to find a frame that’s similar to the eye shape itself.

Most importantly, remember that beauty is in the eye of the beholder, no matter what shape that eye may be!

To really get the best results, choose a pair of glasses that are comfortable and that you feel confident wearing, even if that means going against the grain.

Dominant Eye Test

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Dominant Eye Test

At some point, you may have heard the terms “dominant eye” or “ocular dominance,” but what exactly do they mean, and how can you determine your dominant eye?

Since we usually use both eyes at once, having a dominant eye is often an overlooked trait. Below are some basics on how to find your dominant eye and when eye dominance can make a difference.

How to tell which eye is dominant

A dominant eye doesn’t mean better vision but rather guiding the other better because of preference.

Your dominant eye provides slightly more input to the visual cortex of your brain and relays the information more accurately, especially object location. The visual cortex is the brain region that receives and processes information from the retina.

Eye dominance can vary from person to person. While someone may have a strong degree of dominance in one eye, another may have an eye with a lesser difference in dominance.

For most people, eye dominance won’t impact day-to-day living and is more of a curiosity.

The eye dominance test

If you’re curious, there are several techniques to determine your dominant eye. Below are two basic tests, called “sighting tests,” which can be done quickly and easily.

Extend your arms in front of you, with your palms facing away from you, bring your hands together, crossing your thumbs and forefingers to form a small triangular opening.
With both eyes open, choose a small object in the distance (about 15-20 feet away) and centre this object as you look through the small opening.
Close one eye at a time. When you close one eye, the object will be stationary. When you close the other eye, the object should disappear from the triangle or jump to one side.
If the object does not move as you look through with one eye, that is your dominant eye. For example, if you look through the opening at the object with your right eye open and left eye closed and the object is still centred, you are right-eye dominant.

If you still can’t tell, ask your eye doctor at your next eye exam. Some studies have shown that sighting tests, though generally accurate, can be affected by handedness and other non-visual factors.

They argue that non-sighting tests are more precise in determining eye dominance. In these tests, both eyes are kept open and visual stimuli are presented to each eye separately using special optical devices.

These tests can only be performed in specialized vision clinics or research facilities.

Eye dominance and handedness

While eye dominance and handedness are not directly related, they may be associated, but it is impossible to predict eye dominance based on handedness alone.

Studies suggest that most of the global population is right-handed, but only a third have a dominant right eye.

Research has shown that the odds of a right-handed person being right-eye dominant are high, approximately 2.5 times greater than the odds of that person being left-eye dominant.

Is it possible to not have a dominant eye?

Most people have a dominant eye, but there are rare cases when neither eye is dominant. Some people have mixed or alternating ocular dominance, meaning one eye is dominant for certain tasks while the other is preferred for different functions.

There is a spectrum of degree when it comes to eye dominance. Some people may have a significant difference between their eyes, while others may have a minimal difference.

Dominant eye in sports, shooting and photography

You may notice your dominant or preferred eye when you use a camera, microscope, or telescope.

Understanding which is your dominant eye can improve your performance in certain sports and activities, especially any that require accurate aim.

Minor adjustments to the position of your head or hands can help put your dominant eye in a better spot, allowing you to level up during leisure time or competitions.

In some sports, taking full advantage of your dominant eye is fundamental and requires positioning your head in a way that allows you to do so. Golf and baseball are two examples in which this is necessary.

In golf, certain strokes must be perfectly aligned and require turning your head fully to use and benefit from your dominant eye. While batting in baseball, your head must be turned enough for your dominant eye to see the pitch’s rotation, position and speed.

Some people experience crossed dominance, where their dominant eye and hand are not on the same side. This can cause problems during shooting, but being aware of this can help you make adjustments to improve accuracy.

To shoot and hit moving targets, you should aim with your dominant eye; if you use your non-dominant eye, your target won’t be in the right place. If possible, shooting with the hand that matches your dominant eye is recommended.

Another way to compensate for cross-dominance is to keep both eyes open until right before you take your shot. You can use 100% of your peripheral vision and depth perception with both eyes open.

Knowing your dominant eye can also aid in taking better photos. When looking through the viewfinder of a camera with your dominant eye, you will get a more accurate preview and alignment of the shot.

If you’re using your non-dominant eye, you may notice that specific details will end up displaced or outside the frame in the final image.

Eye dominance problems

For the vast majority, eye dominance has no bearing on day-to-day living. Generally, the term dominant eye is used to describe the preferred eye in typical visual conditions where both eyes function well as a team.

In some cases, dominant eye is used to refer to the normal functioning eye in cases of strabismus or amblyopia.

While not the only cause, a strong dominant eye can sometimes trigger amblyopia or lazy eye. As one eye relays stronger visual signals than the other, it causes the non-dominant eye to become weaker over time.

This can be treated early by patching the dominant eye in hopes of strengthening the non-dominant one. There are also eye exercises that can be done to help improve vision.

Eye dominance

Your dominant eye shouldn’t be an obstacle on a daily basis. It’s beneficial to be aware of this as it can help in certain activities, but as long as your vision is aligned and clear, it shouldn’t matter which eye is dominant.

Whether to improve performance or out of curiosity, try our easy at-home tests to discover your dominant eye.

If you have any questions or concerns about your dominant or non-dominant eye, visit our Optical Centre and speak to one of our opticians online today.

DID YOU KNOW?

Telemedicine has made medical appointments more accessible. It allows you to have access to a medical professional in a timely manner, via a computer, tablet, or phone screen.

Should I Wear Blue Light Glasses When Watching TV and Using My Phone?

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Should I Wear Blue Light Glasses When Watching TV and Using My Phone?

By now, with all the hype surrounding blue light glasses, we should all know the benefits of wearing them. Thanks to their lenses, they can help to reduce things like headaches and allow you to sleep better at night.

But, with an overload of information surrounding blue light-blocking glasses, do we really know when we should be using them?

Should I wear blue light glasses when watching television?

Whether you watch TV during the day or at night, it’s important to ensure we protect our eyes in the best way possible.

When watching TV for long and short periods, we are subjected to our favourite shows, movies and the high levels of blue light waves emitted from our TV screens.

If you find that after binging your favourite series, your eyes feel fatigued, a pair of blue light glasses are something you should consider buying.

zFORT® lenses can limit the penetration of blue light wavelengths between 380nm and 500nm. These lenses provide a fort-like barrier to your eyes and reduce the painful symptoms of one of our favourite pastimes.

The best thing about these innovative lenses is that they can be added to your prescription glasses.

So if you need prescription lenses while watching TV from afar, you can benefit from clear vision and keep your eyes healthy with blue light-blocking lenses.

Do blue light glasses work for phones?

Over 65% of the world’s population use mobile phones and spend an average of 5 to 6 hours on them daily. Like TVs, our mobile phones emit the same blue light wavelength that can damage our eyes.

When using our mobile phones, we are typically much closer to our screens, and with constant eye stimulation and the damaging blue light rays, serious eye damage can occur.

Whether a quick text or scrolling endlessly through social media, blue light glasses should always be worn when using our phones.

Our eye health is important to take seriously, so if you want to prevent your eyes from fatigue and ageing, blue light lenses are your best bet.

Blue light glasses and digital screens

Our eyes are a vital organ we sometimes forget to take seriously. So, the answer to these questions: should you wear blue light glasses while watching TV and do blue light glasses work for phones is a resounding yes.

But, if you want to improve your eye care and reduce your risk of serious damage, blue light glasses are a great affordable option for everyone.

To learn more about how blue light glasses can help with digital eye strain, check out our Optical Centre articles and become an expert.

DID YOU KNOW?

Telemedicine has made medical appointments more accessible. It allows you to have access to a medical professional in a timely manner, via a computer, tablet, or phone screen.

Your Ultimate Guide to Contact Lens Brands

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Contact Lens Brands

Choosing your brand | Contact lens types | Brands | Best Contact Lenses | Does contact lens brand matter? | Changing contact lens

Read our helpful guide to discover more about the different contact lens brands on the market.

Millions of people opt for contact lenses every day over prescription glasses. Contact lenses are thin, curved lenses placed on the eye’s surface (aka “Cornea”) to correct your vision. They’re typically transparent and unnoticeable. However, they also come in various colours that can change your look while providing the same benefits.

How do I choose the right brand?

If you are a first-time contact lens wearer, you may feel overwhelmed by all the contact lens brands and available options. Luckily, you will not have to worry about the options available as contact lenses are fitted by your eye doctor. This includes a thorough eye examination to identify your visual impairment and overall health. So you can decide what the most suitable style for you is.

A physician may also advise you about the replacement schedule and brand. Following this, you can take a look at our quick and easy guide to help you understand the breakdown of major contact lens brands out there.

What are the two types of contact lenses?

Contact lenses are either hard or soft. Hard contact lenses are more durable but are more difficult to adjust to. On the other hand, soft lenses are typically more comfortable to wear and take less time to get used to.

Please read our guide below before you buy contact lenses online to be sure to purchase the pair that matches your optician’s prescription.

What brands of contacts are there?

Johnson & Johnson

Johnson & Johnson is a leader in contact lens technology and was the first company to invent the fantastic silicone hydrogel material that is now being implemented in almost all contact lenses on the market.

Johnson & Johnson is most well-known for introducing Acuvue contacts, the world’s #1 prescription contact lens brand. In fact, Acuvue was the first company to present and sell daily disposable contact lenses. They offer a wide range of options for contact lens wearers with different wear time preferences and even toric lenses for astigmatism. If you are looking to buy contact lens brands for astigmatism, consider the following:

Acuvue

Bausch and Lomb

Another famous manufacturer of contact lenses is Bausch & Lomb. They offer three great contact lens brands.

BioTrue is a fantastic contact lens brand for dry eyes. Their spherical daily disposable contact lenses will keep your eyes hydrated all day. In particular, Soflens and PureVision offer a wide range of options, including special multifocal contact lenses and toric lenses for astigmatism, as well as different wear-time preferences.

BioTrue

Daily Disposable Contact Lenses

Soflens

PureVision

CooperVision

In recent years, CooperVision has made its way to the top by bringing some of the highest-quality contact lenses to the market. CooperVision has contact lens brands that will match your eye’s unique conditions, from toric to multifocal, and even aspherical lenses.

They have a wide variety of contact lens brands, such as Biofinity, Clariti, and Proclear, so you can buy contact lenses that are best for you. CooperVision also has a wide range of wear-time options that make buying your favorite contacts in bulk easy.

Biofinity

Proclear

Clariti

Alcon

Alcon, which began as a modest ophthalmology shop in 1945, has become the second-largest division of Novartis, one of the world’s most successful and respected healthcare firms.

Alcon has four recognizable contact lens brands that produce a wide range of contact lenses, including toric, spherical, and silicone hydrogel lenses. Two of Alcon’s brands, Air Optix and Freshlook, offer coloured contact lenses for a fun twist.

AirOptix

Dailies

Freshlook

Coloured and Spherical Contact Lenses

DID YOU KNOW?

There are many types of contact lens brands available for different needs, but your optometrist will always prescribe you the best for your eye issue.

What is the best contact lens brand?

If you already wear contact lenses, you probably have a favorite brand of lenses that you stick to. If you’re considering the switch from glasses to contacts, you’ll undoubtedly want to learn more about each of the main brands.

Acuvue is one of the most popular and highly recommended contact lens brands on the market. They manufacture a wide range of extremely comfortable lenses. If you’re searching for a well-known and well-respected lens brand, Acuvue is likely to be recommended to you by your doctor.

Other popular and highly recommended contact lens brands include Dailies, Air Optix, Biofinity, and Soflens. With so many brands to choose from, it’s always important to research and speak to an optician to find the right pair for you. Remember, you don’t need to worry about brands as your Eye Care Professional is going to fit you with the correct lenses for your eyes.

Does contact lens brand matter?

When it comes to contact lenses, different brands may have different levels of comfort and convenience for specific needs, so be sure to consult with your eye doctor before purchasing contact lenses.

It is important to remember that contact lenses are medical devices and must be prescribed by a qualified eye care professional. By working with your eye doctor, you can ensure you get the contact lenses that best match your vision correction needs and lifestyle. Your eye doctor can also provide guidance on contact lens safety, care, and wear to help keep your eyes healthy.

Ultimately, contact lens brand does matter. With the right contact lenses, you will be able to enjoy clearer vision and improved comfort. Put your mind at ease by researching the various brands available so you can be sure to understand everything that your doctor recommends in your contact lens prescription.

Can you change contact lens brand?

It’s common for a friend or family member to recommend their lens brand since they know they’re comfortable. However, keep in mind that what works for one person may not work for another.

Before switching contact lenses, you’ll need a new fitting before, even if the contacts are the same brand. This is because different contact lenses have different curves and dimeters which alter the fit. Remember to always ask your optician before changing contact lens brand.

There are so many contact lens choices available at SmartBuyGlasses. If you have any questions about which contact lens brand is best for you, don’t hesitate to ask one of our certified online opticians.

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Contact Lens Brands

Choosing your brand | Contact lens types | Brands | Best Contact Lenses | Does contact lens brand matter? | Changing contact lens

How do I choose the right brand?

What are the two types of contact lenses?

Please read our guide below before you buy contact lenses online to be sure to purchase the pair that matches your optician’s prescription.

What brands of contacts are there?

Please read our guide below before you buy contact lenses online to be sure to purchase the pair that matches your optician’s prescription.

Johnson & Johnson

DID YOU KNOW?

There are many types of contact lens brands available for different needs, but your optometrist will always prescribe you the best for your eye issue.

Acuvue

Bausch and Lomb

Another famous manufacturer of contact lenses is Bausch & Lomb. They offer three great contact lens brands.

Biotrue

• Daily Disposable Contact Lenses

Soflens

PureVision

CooperVision

Biofinity

• Toric Lenses for Astigmatism

• Extended Wear

• Monthly Disposable Contact Lenses

Proclear

Clariti

• Toric Lenses

•Muocalltif

Alcon

Alcon, which began as a modest ophthalmology shop in 1945, has become the second-largest division of Novartis, one of the world’s most successful and respected healthcare firms.

Air Optix

Dailies

Freshlook

• Coloured and Spherical Contact Lenses

What is the best contact lens brand?

Does contact lens brand matter?

When it comes to contact lenses, different brands may have different levels of comfort and convenience for specific needs, so be sure to consult with your eye doctor before purchasing contact lenses.

Can you change contact lens brand?

It’s common for a friend or family member to recommend their lens brand since they know they’re comfortable. However, keep in mind that what works for one person may not work for another.

How to Choose Glasses

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How to Choose Glasses

How to choose glasses: Some top tips | How to choose glasses based on face shape | How to choose reading glasses for computer | Try on glasses online

Deciding on a pair of glasses is harder than it seems, so we've put together some tips to help you make the best choice.

If you’re looking to buy some glasses, but just can’t seem to make your mind up, this guide is for you. We’ll be taking you through tips for how to choose glasses online, trying on glasses online and buying glasses online – all wrapped up in one little article!

How to choose glasses: Some top tips

Choose frames that contrast your face shape. The general rule of thumb for choosing what style of frames to go with is to choose the opposite of your face shape. For example, if you have a very angular or square face, then round frames are a good fit. If you have a round face, consider going with a pair of rectangular frames.
Choose frame size based on face shape. If you have an oval face, don’t use larger frames that will cover half of your face.
Choose frames that center your eyes. If your eyes appear too close to the inner corner of the frames, it will make you look cross-eyed. If your eyes appear too far towards the outside corners of the frames, then it will make the glasses look too small. If your eyes happen to be slightly narrow set, then you should avoid a pair of frames that are too wide.
Choose frames that fit your nose. Because you’ll be wearing your eyeglasses often, you’ll want to make sure that they are a comfortable fit. Avoid glasses that constantly slip down your nose, that leave red marks on your nose, or that cause your eyelashes to touch the lenses.
One way that you can tell if they will fit your face is by shaking your head. If the frames move as you shake your head, they are too big.

How to choose glasses based on face shape

We think that getting the right glasses for your face is the most important part of buying glasses online. If you’re still struggling with how to choose glasses, this face shape guide should really clear things up and get you started!

DID YOU KNOW?

There are four basic face shapes: square, round, oval and heart-shaped. You’l need to figure out which one you have in order to find some glasses that complement your features.

If you have a square face:

You have a well-defined face with a wide forehead, strong cheekbones, jawline and chin. Your most prominent feature is mostly likely your prominent jawline. Round glasses or thinner frames would be a great contrast to your strong features and be better suited to you.

All the curves can help soften your features and compliment your natural looks. We recommend round and oval frames, but aviators or pilot frames are worth a look too!

The best frames for square faces are:

Oval. Oval frames are the perfect accessory for pretty much any occasion. These frames give off a naturally stylish look with minimal effort required. Take it easy, and let these glasses do all the work for you.

Round. No matter how big or small your round frames are, they look exactly how you’d imagine they would – chilled and centred. After choosing this frame, you’ll soon realise that being cool, calm and collected suits you.

Pilot. Aviator glasses will always be on-trend. They look best when worn during those warmer months and add a touch of cool to any outfit.

If you have a round face:

The typical features of a round face are wide foreheads, full cheeks and rounded chins. Your face is normally nearly equal in length and width. We recommend glasses with strong details and angles to contrast your soft features.

By adding some contrast, your face can look thinner and longer. We recommend rectangular, butterfly and wayfarer frames.

The best frames for round faces are:

Wayfarer. They are simply iconic. The end. On a semi-serious note though, these glasses have become the most recognisable and most worn glasses of all time. It’s no exaggeration to say that these are a must-have pair for both men and women.

Butterfly. These are glasses for the experimental individual. With a cool fusion of round and geometric shapes, designs and silhouettes, our butterfly glasses range has unique frames for everyone.

Rectangle. These are the perfect frames for the quintessential gentleman or the professional woman. If you’re looking to revamp your look or simply make a bold statement, then shop our best looks and get your rectangle on!

If you have a oval face:

You have balanced features and high cheekbones, with a slightly narrower chin compared to your forehead. A lot of people consider this to be the most ideal face shape, with the most balanced proportions.

People with oval-shaped faces are really lucky as pretty much any pair of glasses will suit them! However, you should be careful with oversized glasses as they can detract from your naturally balanced features.

The best frames for oval faces are:

Cat Eye. If you appreciate old-school glamour, then cat-eye glasses are the shades for you. You love wearing your vintage coats in winter but would probably prefer the summer months to go on forever! You have a flair for drama and these glasses only enhance your classy vibe.

If you have a heart face:

The typical complexion of a heart shaped face is a wide forehead, high cheekbones, narrow jaw and a well-defined chin. Your face resembles a heart shape since it is widest at the top and narrowest at the bottom.

The aim when choosing glasses for heart shaped faces is to help create the illusion of a smaller forehead and a broader chin. This can be achieved by choosing glasses that are wider than your forehead. We recommend Pilot/Aviator, wraparound and wayfarer frames.

The best frames for heart-shaped faces are:

Pilot. Aviator glasses will always be on-trend. They look best when worn during those warmer months and add a touch of cool to any outfit.

Wraparound. Generally known for their sporty and practical look, wraparounds are the perfect glasses to wear whenever your adventurous side emerges. Head off to distant shores or hike up a mountain in these sporty, protective glasses.

How to choose reading glasses for computer

Computer reading glasses are reading glasses with a blue light filter, or prescription computer glasses. Blue light readers improve both your vision and eye health while using a digital screen. With blue light reading glasses, you don’t have to choose between one pair of glasses or the other.

You can now read small print on the computer while also protecting your eyes from harmful blue light rays. There are over the-the-counter options for both computer glasses and reading glasses online, making blue light blocking reading glasses an accessible option for almost anyone.

At SmartBuyGlasses, we’ve got a huge selection of computer reading glasses with blue light blocking technology – we’ve found that they’re one of the best ways out there to protect your eyes from short-wavelength light (and look great doing it).

With affordable blue light glasses from SmartBuy Collection, to high-style frames from luxury brands like Tom Ford, our range really does have something for everyone.

Try on glasses online

Our groundbreaking Virtual Try-On tool is a giant leap for buying glasses online. This forward-thinking technology lets you see how our glasses look without even having to leave your home – perfect for a socially distanced try-before-you-buy!

Just find a pair of glasses you love and click the VTO button to model designer frames and more from home!

If you’ve found this guide and informative, don’t forget to check out our interesting and educational pieces from our Optical Centre. Of course, if this has got you in the mood for buying glasses online, head on over to SmartBuyGlasses and check out thousands of pairs from the world’s leading online eyewear destination.

What is Pupillary Distance?

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What is Pupillary Distance?

Pupillary distance is the distance between your pupils. Learn how to measure PD in this article.

When placing your first order of prescription glasses online, you’ll likely come across some pretty specific language relating to the various measurements required.

If you’ve never actually had to read your prescription before, some of the terminology used on it will probably be new to you.

One of those terms is pupillary distance, which simply refers to the distance from the center of your left pupil to the center of your right pupil.

Pupillary distance is measured in millimetres and is crucial knowledge when fitting corrective lenses. We’ll take you through the ins and outs of it in this article.

Why is pupillary distance important?

When creating prescription lenses, having the wearer’s correct pupillary distance (PD) is vital, as it allows the lens maker to determine the center of the lenses.

For the clearest and most comfortable vision possible, the distance between the center of the left lens and the center of the right lens should equal the distance between the wearer’s pupils.

Incorrect PD measurements, even if they’re only off by a millimetre or two, could be the difference between perfectly functioning prescription glasses and distorted lenses.

Each pupil needs to align as closely as possible with the center of the lens directly in front of it in order to achieve optimal vision correction.

If the lenses are created with an incorrect PD, the wearer will experience distorted, uncomfortable vision, and possibly headaches as a result. In this case, the correct PD measurement would need to be taken so the lenses can be realigned.

DID YOU KNOW?

The ruler that eye care professionals use to measure pupillary distance is commonly known as a “PD stick.”

Single PD and dual PD

There are two different types of pupillary distance measurement; single PD and dual PD. The definition given earlier – the distance between the center of your pupils – applies to single PD (also called binocular PD).

There is only one value in this measurement, hence the name. For example, a binocular PD could be written as 61mm.

Dual PD refers to the distance from the center of each pupil to the middle of the nose, so there are two numerical values.

A dual PD of 31/30mm indicates that the center of the right pupil is 31mm from the middle of the nose, and the center of the left pupil is 30mm from the nose.

Monocular PD is another name for dual PD. The value of the right eye always comes first in monocular PD.

Either type of pupillary distance measurement will suffice when ordering glasses, but, it’s more common to use binocular PD. Dual PD is useful when ordering progressive lenses.

Reading glasses are an exceptional case, necessitating some simple subtraction. Take 3mm off your single PD or 1.5mm from each value of your dual PD to ensure your reading glasses meet your vision needs.

How to measure pupillary distance at home

Your pupillary distance can usually be found at the bottom of your prescription card, as your eye doctor or specialist measures it during a lens fitting.

However, eye doctors sometimes omit this detail from the prescription card they give to you and just keep it in their own records.

To avoid this, be sure to ask them to include it whenever you go for an eye test and a new prescription.

Even if it’s not on your current card, it’s not a problem. It’s easy to measure pupillary distance yourself at home, and you can even take your pick from old-school and modern methods.

Use the app

Our free pupillary distance app is the fastest and easiest way to measure PD. All you need is a smartphone, a computer with a webcam, and a magnetic strip card. The app has voice instructions that will guide you through each step of PD measurement.

Use a ruler

If you don’t have access to the tools required to use our app, you can easily measure your pupillary distance using this approach. All you need is a millimetre ruler and a mirror.

Step 1: Standing in front of a mirror, hold the ruler flat against the line of your eyebrows or up to the bridge of your nose.

Step 2: Close your right eye. While looking straight ahead into the mirror, align the ruler’s zero mark with the center of your left pupil.

Step 3: Keeping the millimetre ruler still, close your left eye and open your right eye.

Step 4: Read the number aligned with your right pupil’s centre. This number is your first pupillary distance measurement.

Step 5: Repeat the process to ensure you get the most accurate measurement result for your left eye too.

If you are struggling to follow these steps, enlisting the help of a friend could make things easier. All you need to do is stand facing your friend and ask them to measure your PD using either a ruler or a millimetre tape measure.

Both of you can repeat the steps outlined above, with your friend holding the ruler to the bridge of your nose and taking the measurement. During this, your friend must make sure they keep their head still and look straight ahead while they read the measurement.

Is there an average pupillary distance?

Pupillary distance is different for each individual. The average PD for adults is between 54 and 74mm. If your own PD measurement falls outside of the average adult’s PD range, there is no need to worry.

High or low, the number itself does not have any effect on your vision. What’s important is that it accurately reflects the distance between your pupils.

The average pupillary distance for children is between 41 and 55mm. Since a person’s pupillary distance changes with physical development, it’s important to consider that children may have different pupillary distances each year. Don’t take for granted that their PD measurement from a previous year will still be correct.

If anyone knows how to measure pupillary distance, it’s your eye doctor. For the most precise reading possible, ask them to write it on your prescription card each time you or your child has an eye exam.

If you’re still unsure about any prescription-related issues, take a look at our helpful Optical Centre articles, or reach out to one of our certified opticians for help.

Photochromic vs. Polarised Lenses

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Photochromic vs. Polarised Lenses

Photochromic and polarised lenses each have their respective qualities. Find out which type is the best choice for you.

Sunglasses are a versatile accessory; they protect your eyes and make you look cool. You may put a lot of thought into the frame of your glasses or sunglasses, but choosing the right lenses is just as important.

With so many lenses available, it may be difficult to understand which are right for you. The best lenses for an individual will depend on your unique visual needs and what you hope to get from your shades.

Polarised and photochromic lenses are two of the many lens choices which offer excellent UV protection, but many wonder, what exactly is the difference?

What is the difference between photochromic and polarised lenses?

Photochromic and polarised lenses both effectively protect your eyes from harmful UV rays. They’re both available in a diverse range of frame styles and are highly beneficial to wearers. The difference?

Simply put, photochromic lenses automatically adjust from clear to dark with UV exposure. Photochromic lenses start clear and darken upon coming into contact with UV light.

Unlike photochromic lenses, polarised lenses are always tinted and have a special coating that filters out horizontal light rays, which essentially means they cut out glare.

DID YOU KNOW?

Polarised lenses were invented in 1936, exactly thirty years before photochromic lenses.

What are photochromic lenses?

You may have also heard photochromic lenses being referred to as Transitions® lenses, but are they the same?

Transitions® lenses and photochromic lenses work the same way and are essentially the same thing. Transitions® is a brand name and type of photochromic lens manufactured by Transitions Optical Limited.

Photochromic lenses are an excellent choice for people who are sick of switching between their prescription glasses and prescription sunglasses.

As light conditions change, so do the lenses, depending on the intensity of ultraviolet light. And the best part, you never have to change your frames.

Inside, away from UV light, photochromic lenses are clear, but as soon as you step outside and UV rays are present, they gradually darken.

Plastic photochromic lenses and glass photochromic lenses use the same technology but are a bit different in their composition.

Plastic photochromic lenses include molecules of silver halide that are usually layered or embedded evenly onto the surface of the lens, providing an even tint when exposed to UV light conditions, whereas glass photochromic lenses contain the molecules within the glass.

The convenient all-in-one nature of these lenses provides extra comfort in changing environments for those who need prescription eyewear.

How do photochromic lenses work?

It’s all about a chemical reaction. Photochromic lenses have light-sensitive molecules that shift their structure when combined with UV light, allowing them to easily adapt to changing light conditions.

When this light is absorbed, the lenses darken. Away from the sunlight, the process reverses, and the lenses become clear again.

On average, photochromic lenses darken in 30–60 seconds and clear a bit slower in 2–3 minutes.

The molecules in photochromic lenses are not only sensitive to the presence of UV light but also the amount of it. When exposed to bright light, they will change more quickly; less light and they’ll change more slowly.

If you find yourself in the shade, you might notice your lenses darkening less than in direct sunlight. UV light is still present in low light settings like overcast skies, causing photochromic lenses to darken even in these conditions.

Pros and cons of photochromic lenses

The biggest advantages are how cost-effective, convenient and versatile photochromic lenses can be. With no need for a separate pair, one pair of glasses acts as both your eyeglasses and sunglasses.

Photochromic glasses mean no need to worry about changing your glasses upon entering or exiting a building or the sunshine.

The versatility of photochromic lenses is especially beneficial when the weather changes throughout the day, making them great for those with an active lifestyle.

If you’re on the slopes, or hiking in the woods, and the sun keeps disappearing behind the clouds and coming out again, your vision and comfort remain unaffected.

While photochromic glasses benefit many wearers, there are some disadvantages to consider. Temperature impacts the rate at which photochromic lenses darken or clear up.

The lenses usually darken more fully in cold weather but take longer to clear. In warmer weather, they may not darken as much but will become clear quicker.

Most photochromic lenses perform well for three-plus years, but eventually, they will become less reactive to light conditions and take longer to shift between clear and tinted.

Some models, including the Transitions XTRActive® lenses, have more photochromic molecules allowing them to transition even while in the car. These lenses always have a very light base tint and will not go as dark in the car as they do outdoors.

What are polarised lenses?

Polarised lenses are tinted lenses with a special coating that blocks glare, boosts visibility, increases clarity and enhances contrast to make your surroundings more vibrant.

Polarised sunglasses provide optimal vision for outdoor activities, as they block out reflections that come from smooth surfaces, like, snow or water.

When the sun reflects off these surfaces, it causes a powerful, horizontal glare that may cause eye damage and strain.

Polarised lenses improve visual clarity by reducing glare from reflective surfaces, making it easy for your eyes to focus, while also increasing colour contrast and giving you greater depth perception.

How do polarised lenses work?

Whether hiking, cycling or boating, polarised sunglasses are a great option for those who spend a lot of time outdoors. The lenses are designed to reduce glare and enhance outdoor vision, helping improve performance while making colours look more vibrant.

Polarised lenses are well suited for driving during the day, as glare from other cars, or the road, is a common scenario.

With reduced glare comes a lower risk of eye strain. Polarised lenses are an excellent solution for people with light sensitivity, and they may even be recommended to patients who have had cataract surgery.

Pros and cons of polarised lenses

Polarised lenses are well suited for driving during the day, as glare from other cars, or the road, is a common scenario.

With many advantages, there are some things to consider before buying polarised lenses. Polarised lenses may reduce vision clarity when looking at LCD screens or certain displays.

For anyone working in a job where looking at display screens is expected, you should test polarised lenses on them before purchasing.

While polarised lenses are beneficial in snowy conditions, they may make it harder to see patches of ice.

If you’re skiing, snowboarding, driving or walking where there might be lots of ice, it may be best to avoid your polarised sunglasses and reach for another pair.

Another disadvantage is that polarised lenses are always tinted, so if you wear prescription glasses, you will need to carry around both your glasses and sunglasses.

Which is better - photochromic or polarised lenses?

Polarised and photochromic lenses have distinct qualities and advantages, making them great options for your collection. Generally, neither is considered better than the other.

Photochromic lenses are a great option for those who are always on the run, with one pair of glasses serving as eyeglasses and sunglasses.

Polarised lenses block out glare and reflections, not only improving vision but providing a level of safety, and are a great choice for outdoor activities.

Both types of lenses will protect your eyes from the sun’s harmful UV rays. The best choice is always individual, so it’s best to review the functionalities of each, consider your environment and budget and compare this to your lifestyle.

Depending on what you use your sunglasses for, one may be a better choice than the other.

If a reduction in glare will benefit your performance in fishing or cycling, for example, you may choose polarised lenses. Photochromic lenses may be best for you if you need a pair of sunglasses for everyday wear.

Lenses don’t have to be complicated; consider the differences and your vision needs, so you can buy and wear what works for you. With so many options, it’s always best to be informed about your choices.

Head to our Optical Centre to learn more about these lenses, or speak with one of our opticians. And remember, whether you purchase photochromic or polarised lenses, make sure they fit into frames that make you feel confident.

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What are Plano Lenses?

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What are Plano lenses?

What does Plano mean on eye prescription?

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What are demo lenses?

Plano vs demo lenses

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Glasses Measurements

Eyeglass size explained

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I’ve measured my glasses

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What is the Fastest Way to Heal a Scratched Eye?

What is a scratched cornea?

Corneal abrasion causes & risk factors

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Corneal abrasion symptoms

How to deal with a suspected corneal abrasion

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Prevention is better than a cure

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The 10 different eye shapes

Almond shaped eyes

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Can eye shape affect vision?

Myopia, hyperopia, and astigmatism

Exophthalmos

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Can I change my eye shape?

Choosing glasses frames for your eye shape

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How to tell which eye is dominant

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Is it possible to not have a dominant eye?

Dominant eye in sports, shooting and photography

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Eye dominance

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Should I Wear Blue Light Glasses When Watching TV and Using My Phone?