Main entry: optical
Definition: of or relating to or involving light or optics
Usage: optical supplies
Main entry: ocular, optic, optical, visual
Definition: relating to or using sight
Usage: ocular inspection; an optical illusion; visual powers; visual navigation
Main entry: opthalmic, optic, optical, ocular
Definition: of or relating to or resembling the eye
Usage: ocular muscles; an ocular organ; ocular diseases; the optic (or optical) axis of the eye; an ocular spot is a pigmented organ or part believed to be sensitive to light