I spend most of my time lying on my back, watching videos on my laptop which is about 30 cm above my belly. My head rests on a pillow which also supports my neck a bit. It is propped up so that I can watch the screen properly.
After a few months my eyes started to go bad. I have a hard time focusing on things. I chalked that up to staring at close screens all the time. But sometimes my vision would go back to normal.
It goes back to normal when I lie on my stomach for a while. I think it's because I straighten my neck and maybe because I relief pressure on my skull. I was also able to achieve that when lying on my side and straightening my neck.
Unfortunately I can't hold the "good" positions for too long.
I already thought of trying to prop up a projector to shine on the ceiling. But that's too much effort and would probably just annoy me because of the noise.
My glasses just arrived. I'm currently testing them. Typing when your fingers aren't where you see them is really weird. Everything feels weird. I'll need a few days to adjust. But thanks for the suggestion!