I did go about 90% from detached Retinas, and very scary indeed, however they can now operate on this and had my eyesight completely restored, so for about a month had to rely on good friends and neighbours to get about, we did have some fun, my neighbour didn't have a car and was thrilled to death to race around with mine. It is true, that when you can not see, sometimes you see more of who people are and the world around you. A valuable lesson indeed.