Tangentially related: I've been experimenting with very bright lights from when I wake up to sunset. In my bedroom/home office I have a couple 6000k LED lights at 8100 lumens making the room almost as bright as noon outdoors. Post-sunset I use dim red lights. I was inspired by SAD lights but didn't like any of the ones I tried so went with high-powered "corn" LED lights in normal fixtures.
I've noticed that I tend to get sleepier at night which is great as before I would have to force myself to go to sleep (I'm a natural night person.)
I've also noticed a small increase in my distance visual acuity (subjectively measured by me using an eye chart so not the most accurate.) I have read that intense outdoor light protects against myopia (see https://www.ncbi.nlm.nih.gov/books/NBK470669/) so I suspect this is related.
I've noticed that I tend to get sleepier at night which is great as before I would have to force myself to go to sleep (I'm a natural night person.)
I've also noticed a small increase in my distance visual acuity (subjectively measured by me using an eye chart so not the most accurate.) I have read that intense outdoor light protects against myopia (see https://www.ncbi.nlm.nih.gov/books/NBK470669/) so I suspect this is related.