Hello, I have this eye problem once in a while (2-3 times a year) now, last week I had it 3 times and I am worried. I have these blind spots, not foggy, not dark, rather very bright on some areas of my focus. If it's on the side, I cannot see things from the side, if it's right on my focusing area I can't really see what I am trying to see, instead I can see other things to the left and right side of me. Right now I am having this problem and it's taking me long time to write this because I have to correct what I am writing all the time. I had an eye check many times, but because these things don't accidentally happen when I am at the doctor's office they just don't know what is happening. All the test results are fine. What it might be? Also, when I close my eyes I can see sparkling little area just on the spot where I cannot see. Also, it's on my both eyes and moves with my eye movement, the shape varies and so does the size. So that made me think that it might not be an eye problem exactly.