Ocular

(a.) Depending on, or perceived by, the eye; received by actual sight; personally seeing or having seen; as, ocular proof.

Ocular - Other Definitions

(a.) Depending on, or perceived by, the eye; received by actual sight; personally seeing or having seen; as, ocular proof.
(a.) Of or pertaining to the eye; optic.
(n.) The eyepiece of an optical instrument, as of a telescope or microscope.
(adv.) By the eye, or by actual sight.