How do you test for color vision?

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Tejaswi Padma's picture

Answer: 

hello aishwarya....

the test for colour vision is done by using the colour perception test.....The test consists of a number of colored plates, called Ishihara plates, each of which contains a circle of dots appearing randomized in color and size. Within the pattern are dots which form a number or shape clearly visible to those with normal color vision, and invisible, or difficult to see, to those with a red-green color vision defect, or the other way around. The full test consists of 38 plates, but the existence of a deficiency is usually clear after a few plates. There is also the smaller test consisting only 24 plates.

http://colorvisiontesting.com/ishihara.htm

Regards,

Tejaswi Redla

STUDENT'S CORNER N WALL POSTING EVENTS IN-CHARGE

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http://www.pharmainfo.net/tejaswi-redla

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