I am taking Lumigan (very expensive) in both eyes to reduce my IOP. That works pretty well. I used to take it only in my left eye because it showed damage to my optic nerve. Now my doctor asked me to also take them in my right eye, but I never had a high IOP in that eye. Does that mean - I did not have a chance to ask him yet - that I have "normal tension Glaukoma" in that eye? If so, could I switch to Beta Blocker drops which apart from being cheaper might also help with my Atrial Fibrillation? I took Beta Blocker pills for many years, but gave them up because of side effects and am thinking to get back on because of the very high number of PVC's that I have.