Dear doctor, today while I was working with a blue laser I used a piece of paper to see the bright spot, this was extremely bright, after that I started paining headache and after 3 hours I ve noticed a small dark spot in my right cornea, but I can t say if it was already there, then excepted these two symptoms everything is ok and I can see like before, should I go to hospital for a check? And in case does a cure exist? Many thanks