Thanks for asking
My memory loss continued to get worse.
I don't know when I stopped seeing light.
A few months ago my memory returned to normal !
This month I started seeing light again. I have had a few memory lapses but not too bad, and staying home because of the virus hasn't helped.
I am desperate for information -- I'm thinking this may be a rare disorder.
I don't mind seeing light/shapes when it is dark. There is a good description in: https://en.wikipedia.org/wiki/Closed-eye_hallucination
It also describes " In a bright room, a dark red can be seen". I see this but only when facing the bright sun (with my eyes closed). Was really freaky.
The article only talks about these reactions through meditation. Which I do not do.
Also sometimes I see bright white light which wakes me up.
Also I don't think it's coincidence - 2x now - when I start seeing the light/shapes I also start having memory lapses and I believe some kind of sleep deprivation (perhaps REM or Deep Sleep).
I would blame the memory issues on the sleep deprivation, but they continued after the sleep deprivation resolved.
After 2 years of this my memory went back to normal !
However it has started again this January. Am not sure about memory lapses since I don't remember what I don't remember. Before pandemic people would remind me that I had met them for dinner the month before -- & I would have no memory of it.