On the morning of the ascent, Peter Kinloch was elated. The 28-year old Scotsman knew he was about to realize his lifelong dream of conquering Mount Everest. But the view he saw from the roof of the world was his last. Minutes after reaching the summit, Kinloch went blind.
http://news.discovery.com/human/young-mountaineer-meets-his-death-on-everest.html