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Short sightedness or myopic vision is c...

Short sightedness or myopic vision is corrected by wearing

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Short sightedness in humans can be corrected by using

Complete the following sentences : (a) A short-sighted person cannot see……….. objects clearly. Short-sightedness can be corrected by using………….lenses. (b) A long-sighted person cannot see……….. objects clearly. Long-sightedness can be corrected by using...........lenses.

(a) What is short-sightedness ? State the two causes of short-sightedness (or myopia). With the help of ray diagram, show : (i) the eye-defect short-sightedness. (ii) correction of short-sightedness by using a lens. (b) A person having short-sight cannot see objects clearly beyond a distance of 1.5 m. What would be the nature and power of the corrective lens to restore proper vision ?

Does short sightedness (myopia) or long sightedness (hypermetropia) imply necessarily that the eye has partially lost its ability of accomodation ? If not, what might cause these defects of vision ?

What is meant by long-sightedness? How can this defect be corrected ?

Does short-sightedness (myopia) or long-sightedness (hyper metropia) imply necessarily that the eye has partially lost its ability of accommodation? If not, what might cause these defects of vision?

Find the odd word out: Long-sightedness, myopia, short sightedness, near sightedness.

A person suffering form short sightedness cannot see objects beyond 1.2 m. for distinct vision he would use: