Glasses Contributing to Migraines - Contact Lenses?

I have astigmatism and am supposed to wear glasses for reading, computing and although they're not a necessity for driving, everything is certainly clearer when I wear them. I had an operation on my nose to alleviate breathing problems a number of years ago. The migraines I have been suffering since some time after the operation, I believe to be linked to the operation. The problem I face now is that when I wear my glasses, I get migraines more frequently and I think this may be related to the pressure they put on my nose. It has been suggested to me that I try contact lenses, but I'm extremely sensitive about anything going near my eyes, even mascara and eyeliner. Can someone provide me with some advice on using contact lenses, are they easy to manage? Are you sensitive about your eyes and how have you overcome this to put in your lenses. Finally, does anyone else suffer from migraines as a result of a surgical procedure? It's made my life hell :(