Wikiversity

File:Ishihara colour blindness test, London, England, 1948 Wellcome L0058975.jpg

Original file ‎(4,140 × 2,832 pixels, file size: 1.14 MB, MIME type: image/jpeg)

This is a file from the Wikimedia Commons. The description on its description page there is shown below.

Commons is a freely licensed media file repository. You can help.

Summary

Ishihara colour blindness test, London, England, 1948
Title
Ishihara colour blindness test, London, England, 1948
Description

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.

publisher: H. K. Lewis & Company Limited

Place made: London, Greater London, England, United Kingdom

Wellcome Images
Keywords: Books; Ophthalmology; book; colour blindness test
Credit line

This file comes from Wellcome Images, a website operated by Wellcome Trust, a global charitable foundation based in the United Kingdom. Refer to Wellcome blog post (archive).
This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

References
  • Library reference: Science Museum A662609
  • Photo number: L0058975
Source/Photographer

https://wellcomeimages.org/indexplus/obf_images/2b/03/98b13461c74c9d886b8367aeb439.jpg

Licensing

w:en:Creative Commons
attribution
This file is licensed under the Creative Commons Attribution 4.0 International license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

media type

image/jpeg

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current16:36, 17 October 2014Thumbnail for version as of 16:36, 17 October 20144,140 × 2,832 (1.14 MB)Fæ=={{int:filedesc}}== {{Artwork |artist = |author = |title = Ishihara colour blindness test, London, England, 1948 |description = Used to test for colour blindness, this test is named after its inventor, Shino...

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

If the file has been modified from its original state, some details may not fully reflect the modified file.

Retrieved from "https://en.wikiversity.org/wiki/File:Ishihara_colour_blindness_test,_London,_England,_1948_Wellcome_L0058975.jpg"