Definition: A device used by eye doctors to measure the size of the pupils. The device consists of a large camera tuned for infrared detection and two infrared side lamps for pupil illumination. A doctor can use an infrared pupillometer to measure the size of the pupils under different amounts of light, such as during daylight and during the night.
Infrared Pupillometer
By Troy Bedinghaus, O.D., About.com
Updated: January 15, 2009
About.com Health's Disease and Condition content is reviewed by the Medical Review Board
Explore Vision
Must Reads
About.com Special Features
Learn how you can reduce your your numbers with these nutrition and exercise tips. More >
Keep yourself, and your family, happy and healthy this fall with these tips. More >
Also from About.com:
©2009 About.com, a part of The New York Times Company.
All rights reserved.