Multiple choice general knowledge

The test used to know the colour blindness is

  1. liximbo

  2. red eye

  3. colorvision

  4. ishihara

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Ishihara test, developed by Dr. Shinobu Ishihara in 1917, is the standard diagnostic test for color blindness (red-green color vision deficiencies). It uses plates with colored dots forming numbers that colorblind people cannot see.