Glossary

Amblyopia – Condition in which one eye cannot see 20/20 even with the best correction.

Astigmatism – Distorted or blurred focus caused by the irregular shape of cornea or lens.

Cataracts– A cloudiness of the crystalline lens of the eye resulting in reduced vision.

Eye Teaming (Binocularity) – Process in which both eyes work together to form one image in the brain.

Farsightedness (Hyperopia)– Type of vision in which seeing at near is strained. Distance vision is often clear.

Glaucoma – A condition leading to blindness caused by a painless increase of pressure within the eye.

Macular Degeneration – A degeneration of the central portion of the retina (macula) which is responsible for straight-on vision used in driving, reading, perceiving colors, and recognizing faces. Macular degeneration is the most common cause of blindness in people over 50 years of age.

Nearsightedness (Myopia) – Type of vision in which seeing at far is blurry, although near vision may be good.

Presbyopia – A reduction of near focusing ability usually beginning in the late 30’s or early 40’s.