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What do you meant by myopia, …

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What do you meant by myopia, hypermetropia and presbyopia. Also tell me defect and correction of these.

Posted by Ashu Bansal 5 years, 8 months ago

CBSE > Class 10 > Science

2 answers

Tushar Roy 5 years, 8 months ago

Myopia is shortsightedness. Hypermytripia is long sightdness and presbyopia is both it for old person they are not able to see near and far too. Corection for myopia is concave Hyermytropia is convex Presbyopia is bifocal lens.

2Thank You

Salomi Edward 5 years, 8 months ago

It will be good if you refer ur NCERT science textbook

0Thank You

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CBSE > Class 10 > Science