Of the five senses, which one would you rate as the most important? To me, I'd rate sight as the most important of our senses. I think I'd be really lost to not be able to see.
Just this morning, I learned of a colleague (in his mid-twenties), who lost the sight of his left eye while playing rugby in school. He was a teenager then.
When he came back from his studies overseas, he tried driving a car but was involved in an accident and since then, his family would not let him drive. He now takes public transport. At least he still has one good eye. Some people are born blind though blindness is sometimes not a deterrent to great achievements. The following is an inspiration. (Get your Kleenex ready.)