Colour-blindnes tests

[admin]

Here are tests for color-blindness that are required on a medical inspection:

http://www.colour-blindness.com/en/colour-blindness-tests/ishihara-colour-test-plates/

http://colorvisiontesting.com/ishihara.htm

[yatsevsky]

Additional tools (though not reliable):
http://www.colblindor.com/rgb-anomaloscope-color-blindness-test/
http://www.colblindor.com/color-arrangement-test/

An official extract from JAR-FCL 3
1 The Ishihara test (24 plate version) is to be considered passed if the first 15 plates are identified without
error, without uncertainty or hesitation (less than 3 seconds per plate).  These plates shall be presented
randomly.  For lighting conditions see the JAA Manual of Civil Aviation Medicine.
2 Those failing the Ishihara test shall be examined either by:
(a) Anomaloscopy (Nagel or equivalent). This test is considered passed if the colour match is
trichromatic and the matching range is 4 scale units or less, or by  
(b) Lantern testing. This test is considered passed if the applicant passes without error a test with
lanterns acceptable to the AMS such as Holmes Wright, Beynes, or Spectrolux.

Please note that the JAR requirements are same for Class 1 and 2!