I'm an idiot.

[Seoul_lasers]

The pain in my left eye is gone now. I guess it was just fatigue. So far I don't notice any abnormalities in my vision in either eye...

Yes, your eyes got off lucky this time. The pain was from your eyes straining to keep the bright light out.

less be learned. NEVER point a class IIIB-IV laser ever at things that could reflect the light back at you / in an uncontrolled manner.