Indirect binocular ophthalmoscope, battery-powered

Definition

A battery-powered, ophthalmic instrument designed to examine the interior of the eye allowing the examiner to clearly see a wide angle, stereoscopic impression of the details of the fundus (retina) and other structures. It typically consists of a main light to illuminate the interior of the eyeball, a system of lenses and filters and an illuminator beam to eliminate reflexes. Also called a binocular indirect ophthalmoscope (BIO), it produces images that better overcome large refractive errors and subtle colour differences. It can be mounted on a headband or spectacle frames; the batteries may be incorporated, or the power supplied via an electrical cable from an external battery pack.

GUDID devices

42

Last updated

2021-01-21 07:31:18