[sammyg2]

Many years ago my eyes got flash-burned from an arc. Basically retinal sunburn.
Imagine having sand packed behind your eyelids.
It took several hours for the symptoms to get really bad, and about 2 days to go away.

Lets see if your eyes still feel fine in a few hours. It sounds like you may have gotten away with it, but we are talking radiation that has the potential to damage tissue and eyes don't get better, they just get worse.