This much I know: Mark Pollock - explorer/campaigner
One of my earliest memories is being in hospital for an operation on my eye, when I was five. I was born very short-sighted and had always worn thick glasses, but then I lost the sight in my right eye, following a detached retina.
From when I was very young, I wanted to compete. The only problem was that I wasn’t allowed to play the contact sports offered at my school, because of the possibility of detaching my other retina — I needed to be careful with the remaining good eye. I had to wait until I could start competing in rowing, sailing and cross country running from the age of 11 on.

