6:06 p.m. on March 15, 2009 (EDT)
I wear daily contacts for adventuring, with glasses as a backup. Due to the type of eyesight correction I need, my peripheral vision is much better with contacts. I tried three different brands of contacts before I found the ones that were right for me. A good vision care center will give you a complimentary pair to check for proper fit, you wear them a few days and go back in for a check.
It took me a while to learn how to care for contacts properly. Whether adventuring or not, my contacts would get loaded with protein deposits and be uncomfortable to say the least.
There are several types and brands of protein remover products, I use tablets once a week in my lens case overnight. This has made all the difference in the world to me in terms of comfort. Properly cleaned I can't even tell I'm wearing contacts.
As far as care in the back-country, It's not hard, but you do have to carry saline (or make your own at camp) and a lens case of course, unless you have extended wear lenses and sleep in them.
Another reason I wear contacts is so I can use my specialty polarized sunglasses with interchangeable lenses, I like those way better than my prescription sunglasses.
I too like polycarbonate lenses in my prescription glasses, they are much lighter. I also prefer polarized sunglasses and only the wrap around type.
To keep lenses from fogging try one of several anti fogging products, most work well but are not 100%. I like to carry a few lens cleaning wipe singles, the good ones contain an anti-fogger. The wipes are very small and weigh next to nothing.
For fit I make my eye care center fit my glass frames properly, I don't walk out until I'm happy. Go back if in a few days if your not happy after wearing them some, make them earn your business! Also try Croakies or some other brand of retention strap to hold your glasses in place, I mean the kind that can be worn loose or snug by adjusting them, I keep a pair on my sunglasses.
Wearing a hat or cap will cut way down on glare and reduce the damage from UV rays to your eyes.
Another trick I use sometimes when backpacking is to wear a rear view mirror like the kind bicyclists clip to their glasses or cap. You would be surprised at what goes on when your back is turned, (critters mostly). You can also keep an eye on what things look like from the opposite direction, this is helpful for navigation.
I may get laser surgery one day for now I'm just thankful for corrective lenses.
I just wish I could get lenses that let me see through the thick fog we have in the mountains here, sometimes it is present 24 hrs. a day.