Explain human eye and its working. Also write about defects in human eye and their correction.
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The human eye belongs to a general group of eyes found in nature called "camera-type eyes." Just as a camera lens focuses light onto film, a structure in the eye called the cornea focuses light onto a light-sensitive membrane called the retina.
1. Myopia (shortsightedness) :- use concave lens.
2. Hypermyopia (longsightedness) :- use concex lens.
1. Myopia (shortsightedness) :- use concave lens.
2. Hypermyopia (longsightedness) :- use concex lens.
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