Anatomy Of The Eye

To understand what myopia is, it is also important to know how the eye functions and how it develops.

The eyeball is round and it had a protective tough white outer coat called the sclera.

The sclera is covered by a relatively transparent, thin membrane called the conjunctiva. The conjunctiva lines the inside of the eyelids and the outer surface of the eye.

The cornea is the transparent clear structure in the front part of the eye that allows light to enter the eye.

The anterior chamber is the space between the cornea and the iris/lens behind. It is filled with a transparent liquid called the aqueous humor.

The iris, which is the colored structure behind the cornea and in front of the lens, controls the amount of light entering the eye.

The pupil is the opening in the center of the iris and the size of the pupil is controlled by the contraction or relaxation of the muscles of the iris.

The lens of the eye is like the lens of a camera-it focuses light onto the retina at the back of the eye.

The retina of the eye is like the film of a camera-it is the light sensitive layer at the back of the eye that is responsible for vision.

The optic nerve is the structure of the eye where all the nerve fibers of the retina collect together to carry images to the brain.

The optic disc is the place where all the nerve fibers of the retina gather before leaving the eye.