EnChroma - Glasses for colour blindness correction.

[JohnGC]

I don't need to convince anybody. I know all about colour blindness, in part because of my own deficit, but also from my university studies in psychology. He's provided no evidence that those glasses work, and I know they can not.

So why not explain your point instead of being rude, irrelevant and now dismissive?

 

[elton]

So why not explain your point instead of being rude, irrelevant and now dismissive?

It's not up to me to prove they don't work; its up to him, or the manufacturer, to show that they do work. That's how science is done. It's not just a matter of someone saying they work.

 

[JohnGC]

It's hard to understand what they mean, but I can't believe it's anything other than a red or green filter over one eye. I have no idea what they mean by "proprietary", but there's no patent on coloured light filters. The only types of light filter I know of are coloured filters and polarising filters, and it isn't a polarising filter.

I might add that I know a fair bit about colour vision, since I studied it in undergraduate psychology. I was chosen as a test subject in a practical group experiment, in which the rods and cones of my retina were mapped.

There are also interference filters. These are made by depositing thin layers of metals on a substrate. They are often +10 layers deep and produce very sharp notch filters of just a few micro meters width. They are used in measurement systems and in fibre optic communication and have been since the 70s at least.

I'm not an expert in optics, but I do have experience of filter design in electronics. That experience makes EnChroma's brief explanation at least plausible to me.

So given that there is a well established optical filter you haven't heard of and my understanding of filters at different frequencies, you can perhaps see why I don't find your argument convincing.

 

[elton]

There are also interference filters. These are made by depositing thin layers of metals on a substrate. They are often +10 layers deep and produce very sharp notch filters of just a few micro meters width. They are used in measurement systems and in fibre optic communication and have been since the 70s at least.

The notch filter is not a difficult concept to grasp, and it's often used in audio production. Filtering out light of a frequency between that of red and green light, would simply remove yellow light. There would be no enhancement or addition to red and green.

I'm not an expert in optics, but I do have experience of filter design in electronics. That experience makes EnChroma's brief explanation at least plausible to me.

So given that there is a well established optical filter you haven't heard of and my understanding of filters at different frequencies, you can perhaps see why I don't find your argument convincing.

I see no indication of how it's supposed to work. Just a lot of pseudo-scientific waffle, that's all.

 

[Laundryman]

Okay, without any reference to hair loss or the technology behind the lens, I admit to being colour blind to an extent. I took the Enchroma online test and it pronounced me as strongly Deutan.? At 64 years old I’ve learnt to live with it. I find it easier to see the red and green on the plotter than the real object so it’s on all the time and if I have guests or crew I say, what colour is that! I’ve seen the videos and probably have more money than sense, so I bought a pair of clip on enchromas. First thing I did was take the online test again while wearing them. Now I’m apparently Normal.
My first surprise wearing them is, I thought I was more Green affected than any other colour but the difference with the glasses is only marginal. Red however is a Complete game changer! The colour red now appears vivid, bright and shocking.
I have no intention of wearing them in normal use but I can’t wait to see what difference it makes to my sailing.. I have high hope, particularly in poor light. I will report back whether they are as good as expected. Merry Christmas and a happy new year to all.

 

[JohnGC]

Okay, without any reference to hair loss or the technology behind the lens, I admit to being colour blind to an extent. I took the Enchroma online test and it pronounced me as strongly Deutan.? At 64 years old I’ve learnt to live with it. I find it easier to see the red and green on the plotter than the real object so it’s on all the time and if I have guests or crew I say, what colour is that! I’ve seen the videos and probably have more money than sense, so I bought a pair of clip on enchromas. First thing I did was take the online test again while wearing them. Now I’m apparently Normal.
My first surprise wearing them is, I thought I was more Green affected than any other colour but the difference with the glasses is only marginal. Red however is a Complete game changer! The colour red now appears vivid, bright and shocking.
I have no intention of wearing them in normal use but I can’t wait to see what difference it makes to my sailing.. I have high hope, particularly in poor light. I will report back whether they are as good as expected. Merry Christmas and a happy new year to all.

Thanks for this. I will be very interested to hear how you get on sailing.

Happy New Year

 

[JohnGC]

Okay, without any reference to hair loss or the technology behind the lens, I admit to being colour blind to an extent. I took the Enchroma online test and it pronounced me as strongly Deutan.? At 64 years old I’ve learnt to live with it. I find it easier to see the red and green on the plotter than the real object so it’s on all the time and if I have guests or crew I say, what colour is that! I’ve seen the videos and probably have more money than sense, so I bought a pair of clip on enchromas. First thing I did was take the online test again while wearing them. Now I’m apparently Normal.
My first surprise wearing them is, I thought I was more Green affected than any other colour but the difference with the glasses is only marginal. Red however is a Complete game changer! The colour red now appears vivid, bright and shocking.
I have no intention of wearing them in normal use but I can’t wait to see what difference it makes to my sailing.. I have high hope, particularly in poor light. I will report back whether they are as good as expected. Merry Christmas and a happy new year to all.

Just out of curiosity; has anyone who isn't colour blind tried them? What effect, if any, was apparent?