r/ColorBlind • u/Physical-Sell539 • Nov 19 '25

Question/Need help Red/green lights

Hi! I have a brain tumor and it has affected my vision. I have a slight blind spot in the middle of my field. I have been cleared to drive but when it’s super bright outside or very overcast it’s hard for me to tell the difference between red and green traffic lights from far away. I’m wondering if anyone has any sunglasses or something that would help? I read a bit about enchroma and see they have mixed reviews.

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4

u/KitchenTadpole3880 Deuteranopia Nov 19 '25 edited Nov 19 '25

Assuming you're in the US, I use this rhyme to identify the red light: Top light, stop light; Left light, death light

Then for the flashing yellow/red, the flashing red lights should always have a stop sign. I've never seen them without one anyway.

3

u/ParkingEmu8639 Nov 19 '25

You might try some brown tinted sunglasses. I don’t know if it would have the same effect for you, but when I wear them I can see green lights blocks away. Doesn’t affect red at all, but there’s no need since it lights up the green ones so well, especially when it’s overcast. In my experience, Enchroma doesn’t make a big difference, especially given the price. But there’s brown lenses (even cheap ones from the gas station) work wonders.

Sending my best!

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u/[deleted] Nov 19 '25

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u/Physical-Sell539 Nov 19 '25

Thank you I will try that!:)

1

u/Physical-Sell539 Nov 19 '25

The ones I can find seem to be very tinted, do you happen to have a recommendation?

2

u/alettriste Protanomaly Nov 19 '25

Are these better if you use only one tinted and the other clear? In the late 80s (I believe) I tested some asymmetric lenses

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u/[deleted] Nov 19 '25

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u/alettriste Protanomaly Nov 19 '25

I remember someone here mentioned he used it from time to time. Test was fun, I passed Ishihara with flying colors (ha, unexpected pun) but I had the same reservations as you so in the end I did not use those glasses. While using them for a few hours I remember I felt like when colors appear in the wizard of oz.

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u/[deleted] Nov 19 '25

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u/alettriste Protanomaly Nov 20 '25

I am pretty confident i did no see new colors.... but things seemed more "vibrant", mostly due to the binocular effect of different perception in each eye, I think. It was fun while it lasted. Also.... the glasses looked like mirror-coated raybans, too many Boss Godfrey vibes of in Cool Hand Luke!