Write the Causes Of Hypermetropia
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Cause of hypermetropia:
(i) The eyeball becomes too small along its axis so that the distance between the eyelens and the retina is reduced. (ii) The focal length of the eyelens becomes too large resulting in the low converging power of the eyelens
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It is also known as far sightedness.
It is due to
- eye ball become small.
- excessive curvature of eye lens.
A person with hypermetropic eye can see distant object clearly but cannot see near by object clearly. It can be corrected by using convex lens.
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