I had a recent complete eye check up at a renowned hospital. All the parameters including retina where absolutely normal. There was only a small change in my eye numbers prescription. The number had in fact reduced by 0.5. On checking my eye pressure the doctor told me that the pressure was slightly high and gave me some eye drops for dryness. However, while doing the eye pressure check up, the bright round circle image which I was supposed to see in the machine has formed an after image in my right eye even when I keep my eyes closed. This image also forms when I slightly close my right eye. However when I completely open my eyes the image subsides. I can see the image whenever I blink my eyes. The concerned doctor who had done this test in the hospital said that this nothing to worry about and shall go. However, it is now more than two months since I had got my eyes checked the image is still forming whenever I close my right eye. Please advice.