Earlier quoted context omitted.
I have glasses. They greatly ameliorate the issue, but not completely. My prescription is a single number which I don’t believe has the necessary granularity (I think, intervals of 0.25) to express the exact prescription I need. I also suspect that astigmatism is a deformation of parts of the eye that cannot be expressed with a single number. It’s possible I should have gone to an ophthalmologist instead of an optici…
This is very interesting, thanks for sharing details. A friend with strong corrections in their glasses always mentions they feel like they can't see much in the dark, not as much as other people anyway, but we've never been able to quantify it (that they don't see something that I do). That you always wear them in the dark sounds to me like it's indeed more important to correct this effect for dark backgrounds, whic…
If I see a white LED in the dark, the LED shows some sort of smear at a certain angle and with a certain length. The length of the smear decreases the closer I get to the LED. It doesn’t change ever, even if days pass, because it’s a static deformation inside my eye. It does not leave a trail if I look around or if I move the object with the LED.
This also applies to white letters on a black screen. They are smeared at an angle. If I’m far away enough and/or the letters are small enough the smear is so large that they make it hard to read and make me nauseous. That’s why I ended up buying the glasses.
https://pixelbuddha.net/storage/51621/how-to-create-a-motion...
This is an example. The trail is not as long but it’s brighter. (Just googled “motion blur letters” - the effect is similar)