Because of the moving conveyor belt graphic display in the video game Guitar Hero, playing it for any real length of time will result of a vision distortion known as "Hero Vision."

You really have to experience it to understand it, but basically it makes things stretch out.

Hero Vision is not exclusive to the Guitar Hero series, and can be induced by any game like it, such as the Rockband series.
"Yeah dude I finished the song! Aw crap I have Hero Vision!"
by Trevor Belmont December 29, 2009
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The effect on your eyes and subsequently on the world around after prolonged exposure to Guitar Hero or other such music games, where everything appears to be moving towards you.
"Man, I can't see straight after my stint on Guitar Hero last night, I think I've got Hero-Vision!"
by Itchy Biff July 7, 2009
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When playing guitar hero for an obsessive amount of time and looking down to find out that your carpet is moving like quicksand
Bob: Wooow dude, I am totally tripping right now! The carpet is moving!!

Gary: You idiot!! You totally are experiencing Guitar Hero Vision!
by Michael Mo. February 17, 2008
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The way you see everything after playing guitar hero for an extended amount of time.
-dude, is it just me or does that picture on the wall keep growing and shrinking?
-nah, man. that's just your guitar hero vision.
by HaleyC March 19, 2008
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