What is short sightedness ? mention the reason for this defect. Name the lens used to correct this defect. How does this lens correct the eye defect
Answers
Answer:
near(short) sightedness is also know as myopia.
in these defect a person cannot see the far object clearly...
but it can see nearby object very clearly....
this defect occurs because the image is not forming on the retina,it forms in front of the retina....
● myopia can be corrected by using a proper power of concave lens...
●because concave lens is a diverging lens ...
it collects all the light rays and then it focuses all the light rays on the retina.... then a clearly image is seen.....
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Answer:
Short sightedness (myopia) is refer to as when eye cannot see distant object clearly. Image is formed in front of retina .
REASON: focal length of eye lens is too short
Elongation of eye lens
Myopia is corrected by using concave lens
concave lens correct this defect as:
concave lens is a diverging lens it diverge the rays coming ||rl and convex lens in the eye converge the rays and met at retina
Explanation:
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