Which statement is not true regarding medications for glaucoma?

The statement that medications used topically in the eye do not have side effects is not true. In fact, topical medications applied to the eye, such as those used to treat glaucoma, can indeed have side effects. These may include localized effects such as ocular discomfort, redness, or allergic reactions, as well as systemic effects, particularly if the medication is absorbed into the bloodstream. It is essential to recognize that even though topical medications may appear safer due to their localized application, they still have the potential to cause a variety of adverse reactions.

Understanding that both local and systemic medications can lead to side effects is a crucial component of pharmacology and patient care. Local anesthetics used during procedures like tonometry illustrate this principle, as they are specifically designed to minimize discomfort but can still have systemic implications if not used correctly. Therefore, recognizing the possibility of side effects from all types of medications is vital for safe and effective treatment of conditions such as glaucoma.