Hi,
Update from my previous post
I saw my GP last week and told him about my cloudy blind vision episodes.
The only suggestion he could think of was a drop in my blood pressure as this happens at night and I have been laying down for a long time.
He checked my blood pressure from laying down first and afterwards standing. It dropped 10 points, so maybe that was the reason - who knows. I'm seeing the opthalmologist in February.
I'll probably never know why, like most strange things that happen!