ophthalmo-

1. a combining form meaning “eye,” used in the formation of compound words: ophthalmology.

combining form

1. indicating the eye or the eyeballophthalmoscope

before vowels ophthalm-, word-forming element meaning “eye,” mostly in plural, “the eyes,” from Greek ophthalmo-, comb. form of ophthalmos “eye,” originally “the seeing,” of uncertain origin. Perhaps from ops “eye” (see optic) + a form related to thalamos “inner room, chamber” (see thalamus), giving the whole a sense of “eye and eye socket.” pref.

1. Eye; eyeball:ophthalmoscope.