Question

4 common defects of eye of a person and it's correction ?what should be the guaranty h that it will corrected properly?

Answer 1

1)Myopia-short sight ,can be corrected by using concave lens

2)hypermeteropia-long sight,can be corrected by using convex lens

3)pressbyopia-aging farsightedness,can be corrected by using bifocal lens

4)cataract- lens become opaque ,can be corrected by using artificial lens or by surgery

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