this post was submitted on 13 Apr 2025
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Today I Learned (TIL)

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If I close one eye for a few minutes and then switch which eye is closed I see a very (very) subtle difference in hue.

Left eye sees a green tint; right eye sees a pink tint. It's more obvious when I'm looking at a white wall on a bright day.

I don't get this effect if I don't let one of my eyes adapt to the dark first.

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[–] thezeesystem@lemmy.blahaj.zone 1 points 1 week ago (3 children)

I have contrast and vision differences between eyes. Probably because for a long time at night when I get up in the middle of the night I keep one eye from navigating the dark and when light turns in I switch. So I guess doing this for years made the contrast of each eye can detect different.

[–] Jezza@sh.itjust.works 3 points 1 week ago (1 children)

Oh, shit. I've been doing this for years and haven't notice a change yet.

How long were you doing it for? Does it effect your normal vision? Do you regret doing it?

I only ask if I should start switching it up, maybe throw in the other eye every now and then.

Probably sense I was a child as I unintentionally did it for as long as I can remember (bc autism I guess)and only real difference is a very slight difference in prescription in glasses for each eye but genetics make my eyes bad so honestly don't know. The contrast difference is only noticeable at low light levels as one sees better in the dark which is weird.

[–] 200ok@lemmy.world 1 points 1 week ago

That's a smart idea!

[–] datavoid@lemmy.ml 1 points 1 week ago

Read this through my left eye in a pitch black room... due to my asymmetrical astigmatism, this is the only way I can use my phone in the dark. Hopefully it doesn't affect me for a while