tanman ~ are you deliberately causing trouble? LOL, why couldn't you have called this thread something more relevant?

Glasses are easier to use because contacts involve too much fiddiling. The only problems with glasses is that they break and you have a frame around your eyes so it is like looking out of a small window.
Of course those with "assisted vision" (as lau says) need such instruments to "assist" them to see.

G.W.K