The city installed a new fibre-optic network to improve internet speeds.

The company replaced its copper lines with fiber-optic cables to increase data speeds.

During the ophthalmology exam, the physician noted swelling around the optic disk, which suggested increased intracranial pressure.

During the neurology lecture, the professor pointed out that the term optic chasm on the slide was a misspelling of the optic chiasm.

I found an old optical disk in the attic that still played recordings from my childhood.

The library donated several old optical disks to the technology museum last week.

Many optical illusions can still fool even the most careful observers.

The research team developed a new imaging device using conformal optics to improve resolution on curved surfaces.

The artist created an optical illusion that makes the painting seem to move when you change your viewing angle.

The chemist carefully measured the rotation of plane-polarized light passing through the optically active crystal.