Diopter

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 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 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 …

Uveitis

Uveitis Inflammation of the uvea, the middle layer of the eye, which can cause symptoms like redness, pain, blurred vision and light sensitivity. Uveitis can be caused by infections, autoimmune diseases, or other conditions, and may require prompt treatment to prevent complications like glaucoma or vision loss.