i was recently on accutane for twon and a half months and had to be taken off of it. i was one of the few people who got one of the more rare side effects. i developed papilledema, which is the swelling of the optical nerve, in my right eye. this gave me double vision and i had it for over a month. it was so bad that i couldn't drive. accutane can cause brain swelling/pressure in rare cases, like mine.
as for the minor side effects you were asking about, your skin does get incredibly dry. but you can use moisturizers with oil in them b/c the accutane is taking care of everything. my lips got really dry, actually at times, painfully dry and the sides of my mouth cracked and sometimes bled, but just a tiny bit, nothing too terrible. if that happens your doctor can prescribe a medicine called bactroban and that should take care of it. also, at first your skin will break out really bad. it gets worse before it gets better. accutane works really well, it just doesn't work fast. i dont wear contacts, so i dont know about the dry eyes, sorry. also, my hair didn't thin out at all, nor have i known anyone whose hair has thinned out while on accutane.
if i hadn't had the side effect, i would still be on it. i have a lot of friends who have taken it with no major problems and loved the results. most people liken it to a wonder drug. i would just be really sure it's what you want to do. you can try antibiotics and topical creams if you haven't already. taking accutane is pretty serious. there are a lot of lawsuits against this drug. you have to be on birth control and have a blood test done every month. there are a few different reasons a doctor can pull you off of it. best of luck in whatever decision you make.
laura