/ Dictionary / Index O ophthalmometer: Meaning and Definition of Find definitions for: oph•thal•mom•e•ter Pronunciation: (of"thul-mom'i-tur, -thu-, -thal-, op"-), [key] — n. 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. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ophthalmology ophthalmoscope Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language