Ophthalmoscopy

Funduscopy (Eye exam)

Test Overview

Ophthalmoscopy is a test that allows a health professional to see inside the back of the eye (called the fundus) and other structures using a magnifying instrument (ophthalmoscope) and a light source. It is done as part of an eye examination and may be done as part of a routine physical examination.

The fundus contains a lining of nerve cells (the retina), which detects images seen by the clear, outer covering of the eye (cornea). The fundus also contains blood vessels and the optic nerve. See a picture of the structures of the eye.

There are two types of ophthalmoscopy.

• Direct ophthalmoscopy. Your health professional uses an instrument about the size of a small flashlight with several lenses that can magnify up to about 15 times. This type of ophthalmoscopy is most commonly done during a routine physical examination.
• Indirect ophthalmoscopy. Your health professional wears a light attached to a headband and uses a small hand-held lens. Indirect ophthalmoscopy provides a wider view of the inside of the eye and allows a better view of the fundus even if the lens is clouded by cataracts.

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Author:	Alison Allen	Last Updated: August 16, 2007
Medical Review:	Patrice Burgess, MD - Family Medicine Ian MacDonald, MDCM, FRCSC - Ophthalmology Andrew Swan, MD, CCFP, FCFP - Family Medicine
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