this post was submitted on 23 Dec 2023
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The belief that colour blind glasses work
See megalag's videos
https://www.youtube.com/watch?v=Ppobi8VhWwo
https://www.youtube.com/watch?v=_QQtOv2PlOE
That never made any sense to me. If the problem is with the cones in your eyes, then filtering the light going into them isn't going to magically do anything. At best, you might be able to do stuff with contrast to make colors more distinct, but someone that's red-green color blind could only have that actually fixed with new eyes.
Turns out that some people have overlap in color perception that muddies things, and when you use these glasses to filter out the "in between" wavelengths, everything becomes easier to distinguish.