Author Archives: charlotte

Driving glasses Driving glasses are glasses/lenses may incorporate an anti-reflective coating that eliminates the glare from street lights or headlights, helping drivers by reducing the risk of being blinded by light. They’re often worn at night, but driving sunglasses also exist.

Diopter Diopter (D) – A unit of measurement used to measure the power of a lens, indicating its ability to bend light. Diopters is the measurement used to record nearsightedness, farsightedness and astigmatism. For instance, a lens with a -2.00 diopter is used to correct myopia, meaning it helps focus distant objects more clearly.

Blepharitis Blepharitis – A chronic condition characterised by inflammation of the eyelids, usually affecting the area where the eyelashes grow. It can cause symptoms like itching, redness and crusty flakes. Although uncomfortable, blepharitis isn’t contagious and is usually manageable with good eyelid hygiene and, in some cases, medicated treatments.

Bifocal lenses Bifocal lenses – Eyeglass lenses that contain two distinct optical powers in one lens. The upper part of the lens typically corrects distance vision, while the lower part is designed for up-close vision, such as reading. These lenses are commonly prescribed for people with presbyopia who also have a refractive error like myopia …

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Computer glasses Computer glasses – Specialised eyeglasses that optimise your vision when working on computers or other digital screens. Their viewing zone is at the correct distance for computer work, thereby reducing digital eye strain and discomfort at intermediate distances. They also tend to come with blue light-blocking coating and an anti-reflective coating that reduces …

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Cataracts Cataracts – A condition where the eye’s natural lens becomes cloudy, leading to blurred or dim vision. Cataracts often develop with age but can also result from injury, medication, or other conditions such as congenital cataracts, which individuals are born with. Treatment typically involves surgical removal of the cloudy lens and replacement with an …

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Astigmatism Astigmatism – A common vision condition that consists in a refractive error due to the cornea (the clear front surface of the eye), lens, or both being too curved. This causes light to focus unevenly on the retina, resulting in blurred or distorted vision at all distances. Corrective lenses or minimally-invasive surgery can typically …

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Corneal ulcer Corneal ulcer – A serious eye condition that affects the cornea, usually due to infection from bacteria, viruses, fungi, or parasites. Symptoms include severe pain, redness, discharge and blurred vision. Corneal ulcers require prompt medical treatment to prevent permanent vision loss.

Blue light lenses Blue light lenses – Lenses that are specifically designed to filter out a portion of high-energy visible (HEV) blue light emitted from digital screens and artificial lighting. Prolonged exposure to blue light can contribute to digital eye strain and may disrupt sleep patterns. These lenses are particularly useful for those who spend …

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