I actually believe that is true. Lets say when you start playing games and you notice you can't see stuff really far away, after playing so long you can noticed things really small in the backround.
I believe it has more to do with the mental process of looking for things and reaction times. Your eyes don't physcially get any better, but your brain is better trained for minding things and responding to events faster.
Life is impossible, everyone thats tried it has died.