The inflammation of the optic nerve that may cause a complete or partial loss of vision.

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

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.

(informal) Astronomy using observations using telescopes and recording media that capture visible light. / (astronomy) Astronomy using infrared, visible, and/or ultraviolet wavelengths.

plural of optical isomer

(neuroanatomy, anatomy) The part of the brain where the optic nerves partially cross.

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

plural of optic nerve

plural of optical fiber

plural of optical disc