Question

what is the use of eye lens

Answer 1

the following are the uses of eye lens :-

different lenses are made to heal different eye problems some of them are :-

1. myopia ( short sightedness )

2. hyper metro pia ( long sightedness )

3. presbiopiya

lenses are made to heal the person from the above given eye diseases .
lens is according to its focal length is used for different different diseases by adjusting focal length we make concave, convex , biconcave , biconvex , concavocanvex and so on.

hope it helps !!

be brainly ♥

Answer 2

There are two types of eye lenses I.e Convex and Concave

We use spectacles having either the convex or the concave lens a person suffering from long sightedness or hypermetropia (unable to see the near object distinctly) wears spectacles having the convex lens.
While a person suffering from short sightedness or myopia (unable to see the objects distinctly) wears spectacles having a concave lens.

Some people are both short and long sighted, they uses either the separate spectacles for seeing the near and far objects or they use a spectacle with a bifocal lens.

In the spectacles having bifocal lens the lower part is the convex which is used to see the near objects, while the upper part is concave which is used to see the distant object.