Question

(iii) Which lenses have to be used if the muscles near the lens lose their ability to change focal length? ​

Answer 1

Answer:

The ability of the eye lens to adjust its focal length is called power of accommodation. This is done by the ciliary muscles by changing the focal length of eye lens.

Hope that helps you✌

Answer 2

Answer:

bifocal lense

Explanation:

bifocal lens is used to correct presbyopia