Question

Which of the following types of colour blindness denotes blue–yellow colour deficiency?

• A. Tritanopia
• B. Protanopia
• C. Deuteranopia
• D. Ritalin

Hint:

Tritanopia is rarer than red–green colour blindness.

Answer 1

The Correct Option is A

Step 1: Understanding colour vision deficiencies.
Colour blindness results from the malfunctioning or absence of certain cone cells in the retina.
Step 2: Identifying Tritanopia.
Tritanopia is caused by defects in the blue-sensitive (S) cones and leads to difficulty distinguishing between blue and yellow colours.
Step 3: Elimination of other options.
Protanopia and Deuteranopia affect red–green colour perception, while Ritalin is a medication and unrelated to vision.
Step 4: Conclusion.
Hence, blue–yellow colour deficiency is known as Tritanopia.