Viewing a single comment thread. View all comments

Scoobz1961 t1_ixs0t9o wrote

The colorblind glasses are not really suited for daily wear and it does not prevent person who sees color from seeing them.

That being said they will learn of your lie once they actually look into buying you glasses as there are no glasses for Red/Blue colorblindness (as thats not a thing)

You can fess up, or you can double down and harshly scold your friends for wanting to alter your vision. Its incredibly inconsiderable to buy those glasses for somebody without previous consent. As others pointed out, its expensive and it practically forces you to at least try them on. However once you try them, your whole world might get turned upside down.

I have red/green colorblindness and I dont want to even try those glasses. You can be happy when you dont know what you are missing. What if the colors are actually beautiful with the glasses? I will forever have to buy and wear them. Besides they dont even show true color.

29

TheChaosBug t1_ixtvje6 wrote

Those glasses don't even work if you're color blind. They're at best "color corrective" for people who are slightly colorblind like me, but they cannot add cones to your eyes. Colorblindness is due to a lack of specific color receptors in your eyes, no glasses will ever give you the ability to see new colors or tell apart colors you cannot.

5

HaloHowAreYa t1_ixus60b wrote

This is not exactly true. Everyone has all three color receptors in their eyes (to my knowledge, but there may be cases I don't know about), but people with color blindness have an issue with the range of colors that they can see.

Each type of cone is excited by a different range of light wavelengths. Ideally, there would be a perfect separation between the red, green, and blue wavelengths with no overlap. Colorblind people have a more significant overlap between the red and green cone response range, or the green and blue. Or in the most extreme cases, all three, in which case the person would really perceive a "black and white" world devoid of color.

The way that colorblind glasses work is they act as a "notch filter", or a filter that cuts out frequencies only in the overlapping range. This is a fairly novel, quite advanced type of filter and isn't the usual "color correction" type lens you're referring to. This notch filter makes it so that the range of light that your brain usually misinterprets as the wrong color is absent, and it enhances your ability to see those real colors.

If you have 100% overlap between any cones you cannot correct it with these kinds of glasses. But in your case if you do have minor color deficiency, you might have a great experience!

1