Ishihara colour blindness test, London, England, 1948

Made:
1948 in London
Used to test for colour blindness Used to test for colour blindness Used to test for colour blindness Used to test for colour blindness Ishihara colour test with instructions, published by H.K

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Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

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License this image for commercial use at Science and Society Picture Library

License

Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

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License this image for commercial use at Science and Society Picture Library

License

Used to test for colour blindness
Science Museum Group
© The Board of Trustees of the Science Museum

Used to test for colour blindness
Science Museum Group
© The Board of Trustees of the Science Museum

Used to test for colour blindness
Science Museum Group
© The Board of Trustees of the Science Museum

Used to test for colour blindness
Science Museum Group
© The Board of Trustees of the Science Museum

Ishihara colour test with instructions, published by H.K
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Ishihara colour test with instructions, published by H.K. Lewis and Co. Ltd., English, 1948

Used to test for colour blindness, this test is named after its inventor, Shinobu Ishihara (1897–1963), a Japanese ophthalmologist. Each image is made up of a series of closely packed coloured dots and includes a number. The patient is asked to identify the number or image that they can see. By using the range of charts, the type of colour blindness a patient has can be identified. There are three types of colour blindness: daltonism – inability to distinguish reds from greens (the most common type); monochromatism –where all colours appear as shades of one colour; and total colour-blindness. Ishihara devised his test in 1917 and is still used today.

Details

Category:
Ophthalmology
Collection:
Sir Henry Wellcome's Museum Collection
Object Number:
A662609
Materials:
paper and card
Measurements:
overall: 23 mm x 157 mm x 195 mm, .51kg
type:
colour blindness test

Parts

Instruction booklet

Instruction booklet

Instruction booklet

Materials:
paper
Object Number:
A662609 Pt1
type:
instructions
Letter from Dr. Elliott to Dr. Pringle

Letter from Dr. Elliott to Dr. Pringle

Letter from Dr. Elliott to Dr. Pringle

Materials:
paper
Object Number:
A662609 Pt2
type:
letters (documents)