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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[โ€“] [email protected] 8 points 1 week ago* (last edited 1 week ago) (1 children)

This is ironically how I discovered I had this. I took off the glasses and took turns looking with one eye closed to see the effect. I randomly did it some time later without the glasses on out of curiosity and noticed there was still a slight color shift. Young me thought it was the 3D colored glasses that damaged my eyes.

[โ€“] [email protected] 1 points 1 week ago

I may have gone through the exact same scenario. Never was sure.