About a week ago I suddenly developed a dark area in my vision. I am 50. Healthy. No high blood pressure or diabetes. The dark area is in my left eye, central, not affecting periferal vision. It is a bit like a round oil slick, I can see through it, but cannot focus through it for reading. I went to A&E because the problem developed after I had been using a pressure washer on some paving, so I thought I might have got something in it. The doctor put some dye in my eye and something to enlarge the pupil, but could see nothing. After using antibiotic drops for a few days with no improvement, I went back to see another eye specialist. He did the same tests but could not see anything. He used a very long phrase and said said something about blood cells, and that the problem usually sorts itself out. I am now waiting for a further appointment (6-8 weeks) for more tests for a more accurate diagnosis. Does anybody have any ideas what it might be. I am wondering whether to see a specialist privately, which might be quicker.