Description
Product details
An eye testing drum (also known as a Rotating Drum Vision Tester) is an ophthalmic device used for assessing visual acuity. It typically consists of a cylindrical drum that rotates and displays different eye charts, such as Snellen charts, Landolt rings, or Ishihara plates (for color vision testing). Key Features of an Eye Testing Drum: 1. Rotating Mechanism: The drum can be manually or electronically rotated to display different test charts. 2. Multiple Charts: Includes charts for different vision tests, such as distance vision, near vision, astigmatism, and color blindness. 3. Illumination: Some models include built-in illumination for better visibility. 4. Material & Design: Usually made of metal or high-quality plastic for durability. 5. Usage: Used in eye clinics, hospitals, schools, and optical shops to assess vision clarity and detect refractive errors.
