Which instrument is used to examine the interior of the eye?

• A. Otoscope
• B. Eye occluder
• C. Ophthalmoscope
• D. Percussion hammer

Answer: (C)

To look inside the eye, you need an instrument that shines light into the pupil and reveals the retina, optic nerve, and blood vessels. That tool is the ophthalmoscope. With a direct ophthalmoscope, you view the interior through the pupil to inspect the fundus, while an indirect approach uses a lens for a wider view of the retina, including peripheral areas.

The other tools serve different purposes: an otoscope examines the ear canal and eardrum; an eye occluder is used to cover one eye during vision testing to check acuity or alignment; a percussion hammer checks reflexes of the limbs and body, not the eye. So the instrument used to examine the interior of the eye is the ophthalmoscope.