Posterior capsule opacification (PCO) is a relatively common occurrence after cataract surgery and it is easily treatable.

The clear window at the front of the eye, the cornea, is usually a round, even shape. Keratoconus (pronounced keh-rah-toe-cone-us) is when the cornea becomes thinner and bulges outwards in a cone shape. Keratoconus is a progressive condition and can get worse gradually over time. The speed of the change and severity varies between affected people.

A cataract is a clouding or opacity of the lens inside the eye. When a cataract develops, the lens becomes cloudy and prevents any light from passing through.

Age-related macular degeneration (AMD) is the leading cause of blindness in people over 50 years of age. It is caused by the breakdown of the central portion of the retina called the macula.

Blepharitis is an inflammation of the eyes. It usually affects the margins of the eyelids. It is not sight threatening, usually not serious but may become an uncomfortable and irritating problem. Both eyes are usually affected.