Question

The concave lens responsible for _____vision in presbiopia defects​

Answer 1

Answer:

The concave lens responsible for myopia vision in presbiopia defects

Explanation:

This is a type of defect of vision in which far objects appear blurred but near objects are seen clearly. The image is focused in front of the retina rather than on it usually because the eyeball is too long or the refractive power of the eye’s lens too strong. Myopia can be corrected by wearing glasses with concave lenses these help to focus the image on the retina.

Answer 2

Answer:

this defect of vision corrected by using the suitable lens made from"" bifocal lens". in this type of lens the lower portion is convex lens to focus close object. and upper portion is concave lens to focus on far object. Presbyopia is special case of hypermetropia.

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