middle-aged asian man has gray hair, is reading a book by holding it away from the eyes, because he has farsightedness

adult aged asian away background bad because book care concept degeneration disease disorder elderly eyes eyesight eyestrain farsightedness gray grey guy hair hand has health holding human ill learning look looking man medical middle middleaged myopia oculist old ophthalmologist ophthalmology optic optical people person portrait problem reading retina see space trouble verify vision wall young