During the examination, the ophthalmologist noted slight pallor of the optic disc, suggesting early ganglion cell axon loss at the point where they exit the eye to form the optic nerve.

During the summer internship, I focused on optical astronomy, learning to calibrate CCD images and monitor variable stars.

The researcher used an optical trap to manipulate individual nanoparticles without contacting them.

The researcher used an optical tweezer to hold a single virus particle steadily while imaging it under the microscope.

The librarian demonstrated how to use the optical wand to digitize the handwritten index cards.

The museum's interactive exhibit allowed visitors to paint with light using specialized optical wands.

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

Researchers achieved stable optical levitation of microscopic silica spheres inside a vacuum chamber during the experiment.

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.