This has happened several times over recent weeks. I am currently very ill anyway, so don't know if it is connected.
It is my right eye only - sometimes I cannot see out of it. The whole of my field of vision is a great big black circle - I can see a very thin border around the edges. It is like that for a couple of minutes, and then the vision gradually comes back.
What the bloody hell can this be? Is freaking me out somewhat. I am seeing the specicalist about my kidney complaint this week so will mention to him, but has anyone else experience anything like it?