Question

Describe the procedure to detect colour blindness using Ishihara test plates.

09 Jul 2025
Answer :
Word Count : 486
The Ishihara test is a widely used diagnostic tool in human population genetics and ophthalmology to detect red-green colour vision deficiencies, the most common form of colour blindness. It consists of a series of plates, known as Ishihara plates, which are specially designed images composed of dots in various colours and sizes. Embedded within these dots are numbers or shapes that can be recognized based on the ability of the individual to distinguish between certain colours. This test is particularly useful in identifying genetic colour vision anomalies, which are often inherited in an X-linked recessive pattern and are more prevalent in males. The procedure to detect colour blindness using Ishihara plates begins with the preparation of the testing environment. The test ________ _______ _______ ___ _____ _________ _________ __________ __________.
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