The students compared samples using optical microscopes to observe cellular structures.

The new data center relies on optical switches to manage ultra-fast traffic between servers.

The optic nerve transmits visual signals from the retina to the brain, allowing us to perceive light and color.

The network engineer replaced the faulty optical switch to restore high-speed connectivity.

Through the backyard telescope, we discovered that the faint star was actually an optical double — two unrelated stars aligned by chance.

We used optical traps to manipulate microscopic beads in the fluid.

When aligning the stereo microscope, the technician carefully adjusted the optical axes to ensure both images overlapped precisely.

Under polarized light, the mineral's optical activities revealed subtle differences between the samples.

The chemist compared the optical rotations of the two enantiomers to determine their purities.

The ophthalmologist examined the patient's optic discs for signs of glaucoma.