Dear Dr. Roach: I found your response to a question about shortness of breath in a recent column very interesting, since I had the problem for a couple of years before the cause was identified. I had been to an oncologist, cardiologist and family practice, and had all proper tests and X-rays with no answers. The answer was found at the eye doctor. I had been prescribed Combigan eyedrops for pressure in the eye. I have asthma and should not have been prescribed this drug. Since I stopped taking the eyedrops, my breathing is slowly returning to normal. It was very frustrating because all physicians had a complete drug list but never picked up on it.
Combigan is an eyedrop that contains a beta blocker. Beta blockers are effective treatment for elevated eye pressure, which is the major risk factor for glaucoma. Enough of the beta blocker can be