I could be wrong, but one possible reason may be inflammation of regions of the brain responsible for regulating sleep, and involving connection with vision, li

I could be wrong, but one possible reason may be inflammation of regions of the brain responsible for regulating sleep, and involving connection with vision, like the thalamus. Here’s a recent study which seems to point in that direction https://pmc.ncbi.nlm.nih.gov/articles/PMC10520557/ https://pmc.ncbi.nlm.nih.gov/articles/PMC10520557/