Thanks guys. I did forget to mention also that I don't have any vision problems while in the heat either. I get migraines, and most people use ice on forehead, I have to use one of those bean bags you heat in the microwave to help mine, ice makes it worse. I lay that across my eyes and forehead, and this doesn't affect my vision. The tail lights don't get dimmer, or look pink or orange or anything, just a little blurred. What kind of contacts do you wear Rhonda? My eyes do get dried out alot after having them in a long time during the day. Thanks!!!