A new study shows that playing action video games can actually improve your vision. Specifically the action games like first-person shooters help you better pick out objects (i.e., targeting the baddies in a dark room). Slow-moving games like Tetris don’t cut it.

But gaming will only help specific situations, like optical nerve or brain dysfunctions–or old age–but not typical problems with the physical size and shape of the eye (so I’m probably screwed).

Of course then they throw this bit in at the end:

On the downside, research suggests that too much time on a bright screen can cause eyestrain and may disrupt the body’s biological clock, particularly if played just before bedtime, and that some games may be psychologically damaging.

Psychologically damaging. Meh, minor issue.