Not related to this, but is it normal, to see some image distortion while looking at certain white surfaces (like empty paper (or even paper with text in bad lighting conditions) and walls)? It sometimes looks like this (not this intense):
I have a similar phenomenon sometimes when looking at white/bright surfaces and/or in (almost) total darkness, I think it’s this: https://en.wikipedia.org/wiki/Visual_snow_syndrome?wprov=sfla1
EDIT: As additional info for people that might wonder about this in relation to autism - at least in my case I am fairly certain it is not connected, but a comorbitity of migraines (which in recent years I have had much more rarely, but I still often have the visual aura that comes with them, but without a headache - which I found out is something that isn’t uncommon to happen with age)