Ophthalmoscope provides a wider view of the inside of the eye. It allows a better view of the fundus of the eye, even if the lens is clouded by cataracts. It is used for peripheral viewing of the retina. DESCO MEDICAL INDIA Ophthalmoscope includes : 1 Ophthalmoscope head with lens selection wheel (+0 to +20 and -0 to -30) diopters single large circle 1 Battery handle with rheostat button