I flew for years without glasses at all. Now, I can't even go out in the sun without a pair. I keep one in each car, one in the plane, one on the counter just in case. It really sux.

Don't let this happen. Protect your eyes now.

I just got a nice pair from costco. They are polarized and comfortable, well built. They were about $90. The ones in the truck and plane are ray ban aviators. They are very good at cutting the light and great for flying with. You can get them on ebay new for about $40 to 60 if you look, or sporties for a bit more.

A good pair of glasses is worth a lot. Pay a bit more, take care of them, get a hard case and don't sit on them! I keep a good pair for a long time. The pair in the plane has been there for years. Worse thing in the world is to leave your glasses in the truck because it is raining, and then pop out the tops of the clouds and not be able to see.