Skip to main content
CSTSetup
Dictionary · Word part

opt/o

A word part that means eye or vision.

OP-toh root

What it means

The root in optic (having to do with the eye or sight), the optic nerve, an optometrist (who examines eyes and prescribes glasses) and an optician (who fits them).

At a glance

Also writtenopto-

Related terms

ophthalmic

Having to do with the eye, or describing a medicine made to be put in the eye.

Filed under

Look up another word