Question

what type of lenses are used in correction of eye defects hypermetropia and presbyopia?​

Answer 1

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The near-point of the old person having presbyopia gradually recedes and becomes much more than 25 centimetres away. Presbyopia defect is corrected in the same way as hypermetropia by using spectacles having convex lenses

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Answer 2

Answer:

for hypermetropia- convex lens

for presbiopia - cylindrical lens