Next time your significant other complains that you are spending too much time with your video games, tell him/her that you are trying to improve your eyesight. Nature Nueroscience researchers found that playing improves contrast sensitivity, the ability to notice small differences in shades of gray used in night driving or poor visibility conditions. The study, which involved gamers aiming and shooting at virtual targets, also says that gaming may improve amblyopia, “lazy eye,” by making both eyes work together.