Anatomy of the Eye Topic Guide
Anatomy and Physiology of the Eye: Even though the eye is small, only about 1 inch in diameter, it serves a very important function -- the sense of sight. Vision is by far the most used of the five senses and is one of the primary means that we use to gather information from our surroundings.
Corneal Abrasion A corneal abrasion is a painful scrape or scratch of the surface of the clear part of the eye. This clear tissue of the eye is known as the cornea.