from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Situated or occurring behind a lens, as of the eye.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Situated behind a lens (of the eye).
retro- + New Latin lēns, lent-, lens; see lens + -al1.(American Heritage® Dictionary of the English Language, Fourth Edition)
retro- + lental (Wiktionary)