I have done several sections of the AT, and other backpacking trips, and have always seemed to have a problem with my contacts.
However, most of those trips didnt last longer than a week, so I was able to manage.
Here is my problem: I use this certain type of solution called "clear care" which my doctor recommends. This is used with a case that must stay upright (very hard to do while camping), and if it is tipped over, the liquid leaks out. (It is not the conventional L R flat cases).
At home I ALWAYS remove my contacts before every night, but while I am hiking I can usually stretch a couple nights leaving them in (because my fingers are always too dirty anyways to take them out while on the trail) and its not bad until my eyes get all dried out and really irritated. I am planning on a thru hike this year so I would like any advice from what others have found to work for them. (brand of solution, eye drops, method to keep your contacts really clean on the trail, etc...) Your advice is greatly appreciated.
Also, I am very blind, and I only use my glasses at night when I take my contacts off, but it is not an option for me as using them while being active makes me dizzy. Thanks again.