Each to their own. Personally never heard of a single person being blinded by a BB fragment. I've had it happened approximately 20 odd times in 26 years, 24 games a year. Lots of cqb. Nor in that time a single person out of 1000s I've made and sent across the world say they have lost any amount of vision due to a BB fragment. If it was a thing I would be blind 20 times over. Yeah sometimes a little uncomfortable but I'd rather that than not see due to fog. One thing I always say I've had my kid at 3yo dive on me and ram a finger in my eye. I received a scratched eyeball. I still see ok for an old man. Not sure what the joules of a 3yo are compared to a tiny low velocity piece of plastic but I dare say a lot more. Like I say yes you can get bits in your eye, and it's my personal choice. But the idea that such a thing will blind you I have literally never heard of or seen in all my years. Only people claiming it can happen without any information.