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

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.

The ophthalmologist carefully examined the patient's optic disks using a slit lamp and fundus photography.

Although most laptops no longer include an optical disk drive, some users still keep external burners for reading old DVDs.

Many vintage laptops still include optical disk drives for reading CDs and DVDs.