Myopia
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Hypermetropia
|
1.
In this defect
human eye can see nearby objects distinctly but is unable to see distant
objects clearly.
2.
Image of
distant object is formed in front of retina.
3.
Eye ball is
lengthened or lens is curved.
4.
This defect is
corrected using concave lens.
|
1.
In this defect
human eye can see distant objects distinctly but is unable to see nearby
objects clearly.
2.
Image of nearby
objects falls behind retina.
3.
Eye ball is
shortened or lens is flattened.
4.
This defect is
corrected using convex lens.
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