JorVet™ Aspheric Indirect Viewing Lens Aspheric 20 diopter hand held lens. This 20 diopter all glass indirect convex lens
combined with a source of direct illumination i.e. bright penlight allows for ‘indirect’ opthalmoscopy of the fundus. The
veterinarian holds the lens in front of the animal’s eye. At arm’s length, the veterinarian direct light at lens.