![]() The anomaloscope allows evaluation of an individual’s Rayleigh matches, ie the proportions of red and green light that need to be mixed to match a yellow. The other side consists of a red and a green light whereas the proportion of mixture is variable. ![]() On one side you have a yellow color which can be adjusted in brightness. Two different light sources have to be matched to the same color. The first anomaloscope was developed in the 20th century and since then it is the most accurate color blindness test instrument used by eye specialists all around the world.Īn anomaloscope is based on a color match. The wider the range you are able to find match with the reference color, the more severe color blindness you have. So this is just a simple reproduction, due to the different operating principle. As every color on a computer display is made up from the three base colors red, green, and blue, an anomaloscope can’t be reproduced online. Anoaloscope uses 3 primary monochromatic colors (670 nm - red, 546 nm- green and 589 nm - yellow), while in the online version, the yellow is a mixture of red and green colors. Its efficiency is not comparable with the original instrument. This test is only a demonstration of the original anomaloscope. If you get an exact match, press ‘Match’ and if you can’t match them use the ‘No Match possible’! button. You can get a match while using the slider. The online anomaloscope is a very simple red-green color blindness test.
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