State four reasons related to problems of vision.

1.	State four reasons related to problems of vision.
Answer» Problems of vision are related to (i) weakening of ciliary muscles (ii) change in the size of the eyeball (iii) irregularities on the surface of cornea (iv) formation of a membrane over the eye lens.

Answer»

Problems of vision are related to

(i) weakening of ciliary muscles

(ii) change in the size of the eyeball

(iii) irregularities on the surface of cornea

(iv) formation of a membrane over the eye lens.

Discussion