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I believe they are not reacting to red, but by the ability to differentiate it from other colours. I'm colour blind in one eye only. For that reason, I quite w

• peacefulhat 6y ago
  Mac and Windows have this functionality in the accessibility settings if you want to try it out.
  • ksaj 6y ago
    I thought they had colour pallets that are appropriate for various blindnesses (ex: for yellow/blue blind folks, green, blue and cyan are all the same colour, so you wouldn't use more than one of that set of colours in any given pallet). I don't need that since I see fairly normal colour in the other eye, and so I have an immediate "converter" to see what the visual difference is between yellow/blue blindness and normal vision. I literally don't even notice unless my right eye vision is blocked. I see a properly coloured world as long as both eyes (or my right eye alone) are seeing it. I don't think the OS/X and Windows things are emulating what the glasses do. The glasses are filtering out overlapping colour frequencies (as seen by the eye's cones) so the R G and B are more distinct. That's completely different. This is limiting the noise, versus changing the whole colour pallet. Interestingly images altered to look like yellow/blue blindness look the same to both my eyes, so I'd say they're pretty accurate. There are some small discrepancies, but very few in most that I've seen. I actually find that a little jarring because of course my right eye protests this invasion of missing colours.