(neuropathology) An autoimmune disease with a similar presentation to multiple sclerosis, but is common in Asians and in most cases is characterised by the presence of anti-aquaporin 4 antibodies.

A modern data storage medium consisting of a flat disc read mechanically by illumination with laser light. Formats include the Laserdisc, compact disc, DVD, and Blu-ray.

Optical discs used to store data, including such formats as Laserdisc, compact disc, DVD, and Blu-ray.

That does not involve vision / That does not use optics

(physics) A device that employs a focused laser beam to trap, manipulate and image very small particles

(physics) The rotation of the plane of polarization of plane polarized light as it passes through a chiral medium

(India) spectacles

plural of optical

plural of optical fiber

plural of optical disc