Question

Ishiara charts are used by ophthalamologists for detecting

• A. Eye infection
• B. Night blindness
• C. Colour blindness
• D. Finger prints

Answer 1

Answer: (C)

Colour blindness

Dr. Shinobu Ishihara introduced in 1917—almost 100 years ago—the most well-known colour blindness test. Each of his tests consists of a set of coloured dotted plates, each of them showing either a number or a path. Since then this is the most widely used colour vision deficiency test and still used by most optometrists and ophthalmologists all around the world.

So, the correct answer is 'Colour blindness'.