Question

Different types of lens used for correcting the eye defects informa
tion

Answer 1

Myopia can be corrected by wearing glasses/contacts with concave lenses these help to focus the image on the retina.

Hyperopia can be corrected by wearing glasses/contacts that contain convex lenses.


Astigmatism can usually be corrected by using a special spherical cylindrical lens; this is placed in the out-of-focus axis.