(MSCDFSM)

Q8. a) What are the disorders of image formation? How are they corrected?

ANS- Many parts of the eye shown and described on the page about the anatomy of the eye play important roles in the formation of an image on the retina, which is the back surface of the eye that consists of layers of cells whose function is to transmit to the brain information corresponding to the the image formed on it.

Those parts of the eye that do not take an active part in the formation of the image on the retina have other important functions, such as providing mechanical support to the structures of the eye or supplying the tissues with fluids, nutrients, and so on.

A ray-diagram can be used to show how light passes from a point on a real object (located somewhere in space outside the body) to the corresponding position on the image of the object on the retina at the back of the eye.

The human eye contains a biconvex lens that performs two important functions – refraction of light and focusing of images to the retina. The lens and retina are crucial structures of the human visual system that work hand-in-hand to execute the image forming process.