“I was playing a game of ultimate frisbee and got fuzzy vision in one eye – a bit like looking through a steamed-up windscreen.”
Ailsa Guidi was 22 at the time, studying at University of Manchester.
“The doctor said it was optic neuritis, so I had steroid treatment, and the blurring went away. So I got on with being a student.”
Two years later, in 1999, her vision went fuzzy again. This time, her GP was concerned that it might indicate something more serious.