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.

(film) Any special effect requiring laboratory work on the film.

regarding or using optics

The quality of being optical, or apprehended through sight.

(India) spectacles

plural of optical

(archaic, humorous) An eye. / (optics) A lens or other part of an optical instrument that interacts with light.

(relational) Of, or relating to the eye or to vision. / (optics, relational) Of, or relating to optics or optical instruments.

(physics) The physics of light and vision. / The light-related aspects of a device. / (figuratively) Perception, image, public relations, especially in politics.

plural of optic