The optic nerve is responsible for transporting information from the eyes to the brain. Glaucoma is a
range of conditions that cause cumulative damage to the optic nerve, usually due to high
intraocular pressure. In most cases, glaucoma develops very slowly over several years and gradually steals the peripheral and eventually, if not treated, the central vision.
Read more about glaucoma.
As you get older, the proteins in your eye’s natural lens restructure, causing the lens to become progressively cloudy. This is called a cataract. As the cataract continues to develop, it gets harder and harder to see sharp detail. Eventually, cataracts need to be replaced with artificial lenses through surgery.
Read more about cataracts.
Age Related Macular Degeneration
The macula is the small area of the retina used for central vision that allows you to see details like words, numbers, and faces. Age-related macular degeneration or AMD is a condition that causes permanent central vision loss by damaging the macula.
Dry AMD occurs when fatty deposits called drusenaccumulate beneath the macula, damaging the cells.
Wet AMD occurs when weak or damaged blood vessels in the retina start to leak fluid. This leakage can cause scar tissue to develop, which damages the macula.
Read more about age-related macular degeneration.
Keratoconus is a condition that causes the cornea to thin and bulge outwards, rather than maintaining its natural round shape and uniform thickness. The changes to the cornea can distort vision, as well as causing other issues, like difficulty wearing contact lenses.
Read more about keratoconus.