ANATOMY OF THE EYE

The eye has many parts that must work together to produce clear vision:

·         The sclera, or white part of the eye, protects the eyeball.

·         The pupil, or black dot at the centre of the eye, is a hole through which light can enter the eye.

·         The iris, or coloured part of the eye, surrounds the pupil. It controls how much light enters the eye by changing the size of the pupil.

·         The cornea, a clear window at the front of the eye, covers the iris and the pupil.

·         A clear lens, located behind the pupil, acts like a camera lens by focusing light onto the retina at the back of the eye.

·         The retina is a light-sensitive inner lining at the back of the eye. Ten different layers of cells work together in the retina to detect light and turn it into electrical impulses.