Is it your first pair of circle lenses? When I first wore mine it really stung and I couldn't wear it for more than a couple of hours. After trying a few times for about a week, then did it start to feel more comfortable. Make sure your hands are clean and use a lint free towel to dry your hands because it leaves those lil fluffy bits on your hands. Put solution all over your hands to make sure all the fluff is gone from your hands. You might just have to get used to the lens.

i agree with shawtysara you have to get used to the circled lens just like you have get used to glasses i used to wear them

Try to flip them over (inside out)and put them in from the opposite way. I found out that it is more uncomfortable when the lens aren't put in correctly. Maybe there is something different with the shape of your eyeball that doesn't really fit. I really don't know but be careful, and if anything still feels uncomfortable, I would go to the eye doctor and ask.

are u sure ur not allergic to the contacts solution? Try switching the contacts solution then on the surface of the lens, put a few drops and rub the lens together to clean them, do this for both sides...hope that helps =) if not, i would suggest buying some eye drops, specially the ones saying 'for sore, irritated eyes, stinging' and it should help make the lens more comfortable.

you're not supposed to wear the lenses right after you open them. put them in a container with your normal contact lens solution for 24-48hrs (that's what i did) and make sure they're completely "in" the solution. i had this small part of the lens which wasn't soaked and it hurt my eye a lot. afterwards i put it back into the solution for a week or so and now they're really comfortable. i have 4 pairs of circle lenses. i love em =)