Eye Diseases

The eye is an organ located on the face. It recognizes light rays which come from external sources and are used for sight. A baby’s eye is ¾ the size of an adult eye. The visal signals from the eye are processed in the retina, and later by other processing centers in the brain.

There is some external similarity between the human eye and a camera. Both the eye and the camera use a transparent lens to focus the light towards the light-sensitive receptors. The camera shutter is similar to the iris, as they both regulate the amount of light that reaches the retina. However, in other aspects, the eye is very different from a camera.