I wore contacts on many hunts and just took them out at night. One night I heard noise out by my backpack and when I looked out, without my contacts, it was all a blur. I quickly tried to put on my contacts and there was slushy ice in the cases along with my contacts. I wiped away the slush and put them in my eyes, along with some slush I think, but there was nothing around outside, at least at that point. I had LASIK done a few months after that. It was time for new glasses and contacts and rather than spend $500 on them, I spent $3000 on Lasik surgery. In seven minutes under the LASIK machine my life improved dramatically. It was the best money I ever spent.
