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I noticed my eyesight gets better after many hours outside not looking at any screen. And worsen after many hours in front of a screen. Is there a name for that

I noticed my eyesight gets better after many hours outside not looking at any screen. And worsen after many hours in front of a screen. Is there a name for that?

misslibby 4y ago
Could it just be dryness of the eyes?
thiht 4y ago
Eyestrain
d13 4y ago
Probably because your pupils dilate in bright sunlight, which improves focus?
plonk 4y ago
Some websites call it "computer vision syndrome" [1], but it just seems like eyestrain to me. [1] https://www.aoa.org/healthy-eyes/eye-and-vision-conditions/computer-vision-syndrome?sso=y https://www.aoa.org/healthy-eyes/eye-and-vision-conditions/c...
tamrix 4y ago
My parents would call it square eyes lol
AndrewDucker 4y ago
Tiredness of the eye muscles after many hours forcing the focus to a short distance.
rnd420_69 4y ago
have you verified that it actually gets better and that you're not just getting used to it? I used to think the same thing when I just tried not wearing glasses for a while. I could swear that it was awful at first but over time my no-glases eyesight improved tremendously. I then did a really simple distance reading test and it was obvious that it didn't improve at all and the effect was imagined.
KVFinn 4y ago
I think it's multiple things. Your eye is a muscle, focusing only at close range keeps the range of motion tight. Just like your back and neck might get stiff sitting all day. Sunlight means smaller pupil, wider depth of field, just like a camera. (My speculation) More light gives you brain more information to clean up or upscale a blurry image. This effect even seems to last when you leave sunlight, for awhile. It's like I fine tuned my neurons to prioritize blur reduction, and it takes awhile for them to fall back into normal processing. If this is true, my guess is that I might be trading off contrast or color details for sharpness.
Aulig 4y ago
There is indeed, cilliary spasm and near induced transient myopia (nitm).
ymolodtsov 4y ago
You are getting muscle spasm on top of myopia. Unlike the changing physiology of the eye, this is reversible.

I noticed my eyesight gets better after many hours outside not looking at any screen. And worsen after many hours in front of a screen. Is there a name for that?

misslibby 4y ago

Could it just be dryness of the eyes?

thiht 4y ago

Eyestrain

d13 4y ago

Probably because your pupils dilate in bright sunlight, which improves focus?

plonk 4y ago

Some websites call it "computer vision syndrome" [1], but it just seems like eyestrain to me. [1] https://www.aoa.org/healthy-eyes/eye-and-vision-conditions/computer-vision-syndrome?sso=y https://www.aoa.org/healthy-eyes/eye-and-vision-conditions/c...

tamrix 4y ago

My parents would call it square eyes lol

AndrewDucker 4y ago

Tiredness of the eye muscles after many hours forcing the focus to a short distance.

rnd420_69 4y ago

have you verified that it actually gets better and that you're not just getting used to it? I used to think the same thing when I just tried not wearing glasses for a while. I could swear that it was awful at first but over time my no-glases eyesight improved tremendously. I then did a really simple distance reading test and it was obvious that it didn't improve at all and the effect was imagined.

KVFinn 4y ago

I think it's multiple things. Your eye is a muscle, focusing only at close range keeps the range of motion tight. Just like your back and neck might get stiff sitting all day. Sunlight means smaller pupil, wider depth of field, just like a camera. (My speculation) More light gives you brain more information to clean up or upscale a blurry image. This effect even seems to last when you leave sunlight, for awhile. It's like I fine tuned my neurons to prioritize blur reduction, and it takes awhile for them to fall back into normal processing. If this is true, my guess is that I might be trading off contrast or color details for sharpness.

Aulig 4y ago

There is indeed, cilliary spasm and near induced transient myopia (nitm).

ymolodtsov 4y ago

You are getting muscle spasm on top of myopia. Unlike the changing physiology of the eye, this is reversible.