Optical
Part of speech: adjective
Definition: Of, or relating to sight; visual Designed to assist or enhance sight Of, or relating to optics Of, or relating to visible light Incorporating light-sensitive devices
Example sentence: In spite of the evidence for the disorder-induced M-I transition as inferred from the transport and optical measurements, the metallic state of conjugated polymers has been a subject of controversy.
Ocular
Part of speech: adjective
Definition: Of, or relating to the eye, or the sense of sightResembling the eyeSeen by the eye; visual
Part of speech: noun
Definition: The eyepiece of a microscope or other optical instrument