If enough people ask the same question for which we do not already have a printout or instruction sheet, we can add it. One of the most difficult problems faced by glaucoma patients is that of having to take medications which may have both ocular and systemic side effects to control a disease which is usually painless and has no symptoms. Understanding the necessity for the medication often helps to reduce the severity of a side effect, since it is often magnified by anxiety. Some patients have no side effects whatsoever, while others find them too severe to tolerate. Why a drug causes side effects in some persons and not others or why the same side effect of the same drug is severe in one person and mild in another are poorly understood.
Quality of life is important.
We sometimes have to make the decision to perform laser or surgery, even if IOP can be controlled, if the side effects of the medications necessary for control are intolerable. It is up to you, the patient, to participate in and ultimately make the decision in such a situation. What you should not do is skip taking the medications and lose vision because of side effects. You should also not be afraid to mention any side effects you might have or attribute to the drugs, since it is not your fault that the drugs cause them. All drops may cause some burning or stinging when instilled.