Merck Manual

Please confirm that you are not located inside the Russian Federation

honeypot link
What Is an Ophthalmoscope?
What Is an Ophthalmoscope?

An ophthalmoscope is an instrument that enables a doctor to examine the inside of a person's eye. The instrument has an angled mirror, various lenses, and a light source. With it, a doctor can see the retina, the optic nerve, the retinal veins and arteries, and certain problems that can affect the vitreous humor (the jellylike substance in the eye).

In these topics
The Eye Examination