what is hypermetropia it causes and correction?
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hyper metro pia is know as farsightedness. in this case we can't see the far object. it is correct convex lens of correct focal length
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A person with hypermetropia/hyperopia or long sight can see clearly objects far away from them, but not close to them. This is caused by the shape of the eye - the eyeball is slightly too short. It is corrected by spectacles or contact lenses with lenses which are 'plus' or convex in shape.
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