Question

explain defects of eye and their correctness in detail please help me its very imp

Answer 1

The defects of vision are also known as defects of eye. ... These are the refractive defects of vision because they are caused by the incorrect refraction of light rays by the eye-lens. These defects of vision can be corrected by using suitable spherical lenses (convex lenses or concave lenses).

Answer 2

Defects of the eye: Myopia: (nearsightedness) This is a defect of vision in which far objects appear blurred but near objects are seen clearly. ... Hyperopia: (farsightedness) This is a defect of vision in which there is difficulty with near vision but far objects can be seen easily.

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