Definition of "ophthalmoscope" [oph•thal•mo•scope]

• An instrument for examining the interior structures of the eye, especially the retina, consisting essentially of a mirror that reflects light into the eye and a central hole through which the eye is examined. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• ""We also want to raise awareness for families of young kids to tell their pediatricians to do the proper diagnosis, to use what they call the ophthalmoscope and to dilate the eyes."
• "Caught early enough -- and the ophthalmoscope is the method for pinning it down -- the condition can be treated with laser surgery."
• "The ophthalmoscope is a very useful instrument for determining the condition of the different structures of the eyes, when in the hands of persons who are trained in its use."