I had perfect vision until I got a sty on the inside lid of my right eye. I now have blurred vision in that eye. 2 doctors have told me a sty can not cause blurred vision and that my eye is technically perfect. Just age is causing my eye to blur. It is driving me crazy I know it is the sty I just can't prove it.
I had the same thing happen and the Dr. Told me that it had actually caused my eye to change shape and caused astigmism. It was not perminate after a couple of days with drops it went back to normal.