[ of-thuh l-mom-i-ter, -thuh-, -thal-, op- ]
/ ˌɒf θəlˈmɒm ɪ tər, -θə-, -θæl-, ˌɒp- /


an instrument for measuring the reflection of an image on the surface of the cornea and other capacities of the eye, used chiefly for determining the presence and degree of astigmatism.

Nearby words

  1. ophthalmolith,
  2. ophthalmologist,
  3. ophthalmology,
  4. ophthalmomalacia,
  5. ophthalmomandibulomelic dysplasia,
  6. ophthalmomycosis,
  7. ophthalmomyitis,
  8. ophthalmopathy,
  9. ophthalmoplegia,
  10. ophthalmoscope

Origin of ophthalmometer

First recorded in 1835–45; ophthalmo- + -meter

Related formsoph·thal·mo·met·ric [of-thal-muh-me-trik, op-] /ɒfˌθæl məˈmɛ trɪk, ɒp-/, oph·thal·mo·met·ri·cal, adjectiveoph·thal·mom·e·try, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for ophthalmometer


[ ŏf′thəl-mŏmĭ-tər, -thăl-, ŏp′- ]



The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.