Question

8. Identify the eye defects given in the image. Draw the corrective ray diagrams of the respective eye defects.

Answer 1

Answer:

The first one is myopia and the second one is hypermetropia. The first one can be corrected using convex lens while the second one can be corrected using concave lens.

Explanation:

myopia

Myopia occurs when the eyeball is too long, relative to the focusing power of the cornea and lens of the eye. This causes light rays to focus at a point in front of the retina, rather than directly on its surface.

hypermetropia

This vision problem occurs when light rays entering the eye focus behind the retina, rather than directly on it. The eyeball of a farsighted person is shorter than normal

Farsightedness can be corrected with glasses to change the way light rays bend into the eyes.