Re: Blurred vison for short amount of time after angry outburst.
I'd be more concerned about your angry reaction to a game. Nothing wrong with a bit of frustration, but it sounds like you're prone to angry overreactions. I'm not a gamer myself, but there's one game I do play regularly that used to elicit the same reaction from me from time to time. I used to explode with irate frustration. It was unhealthy. Put your gaming in perspective, and try to take some pleasure from the challenge when it doesn't go the way you'd want it.
The vision thing sounds transient and benign.
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