Distance Vision Drum is an ophthalmic device used to assess a patient’s distance visual acuity.

It displays various optotypes like alphabets, numbers, or symbols on rotating panels or electronically.

Typically placed at a standard distance of 6 meters (20 feet) from the patient during eye exams.

Available in manual and motorized versions, with options for remote control operation.

Ensures accurate and consistent vision testing in clinics, hospitals, and optical stores.