Dictionary
di•op•tric
Pronunciation: (dī-op'trik), [key]—
adj.
1. Optics.pertaining to dioptrics:
dioptric images.
2. Optics, Ophthalm.noting or pertaining to refraction or refracted light.
Also,di•op'tri•cal.Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.