Of, pertaining to, or using vision or sight; as, optical illusions.

Of or pertaining to the eye; ocular; as, the optic nerves (the first pair of cranial nerves) which are distributed to the retina; the optic (or optical) axis of the eye. See Illust. of Brain, and Eye.

Relating to the science of optics or to devices designed to assist vision; as, optical works; optical equipment.

Of or pertaining to sight or vision.

Optical means pertaining to or using light; it also describes something designed to assist sight.

Having to do with vision.

relating to or using sight; "ocular inspection"; "an optical illusion"; "visual powers"; "visual navigation"

of or relating to or resembling the eye; "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"

Optical means something which pertains or is designed to assist sight; pertaining to or using light.