a student cannot see what was written on board 3 m away. identify the vision defect and state its causes
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myopia is the vision defect.
causes are
elongation of eye ball
excess curvature of lens.
causes are
elongation of eye ball
excess curvature of lens.
Answered by
2
the student is suffering from myopia its causes are elongation of eye ball and excess curvature of lens.
So he can use concave lens of 0.33 dioptre to correct his vision
So he can use concave lens of 0.33 dioptre to correct his vision
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