For two weeks now I have been experiencing slight flickering in my peripheral vision when I am in the light. When I try to look at the flickering it disappears so I can see it when I am looking to the side but can not focus on it. I went to the opticians yesterday and when the optician looked into my eye she said she could see a small lump that looks like a blister at the back on my retina but couldn't tell me what it was as she'd never seen anything like it before. She sent me on to the hospital to see an opthamologist who said it looks like the layers at the back of my eye are elevated and she could not tell me any more but they are going to do more tests. She also said she does not think the flickering vision is related to what's in my eye which I think is ridiculous. i have to wait for an appointment which could take up to four weeks. Please can anyone tell me if they have ever experienced anything or heard of anything like this before or know what this might be?