Toprol-XL and contact lenses

My Dr. started me on Toprol XL when I was constantly complaining of migraines. Imitrex worked the first couple times I used it, then it didn't any more. My blood pressure was not real high, but higher than normal so he suggested Toprol XL. He told me it would lower my BP and help prevent migraines. I started with 25 mg, worked up to 100 mg a day. I've been on it for over a year now and only have migraines about once every 3 months or so whereas before they were coming 2 and 3 times per month and lasting 2 to 4 days each time. My BP is normal and all seemed fine. About 5 months ago, I started having problems keeping my contact lenses in, especially at the end of the day or when I was tired. My eye doctor asked me what meds I was taking. Turns out one side effect of Toprol XL is drying of the eyes. After wearing extended wear contacts for 20 years, only taking them out once a week, now I have to take them out every single night. Other than that I really can't complain. It's worth it to me to not have the migraines. I have not noticed any of the symptoms on this web site.