Which of the following topical medications can cause allergic reactions?

Aminoglycosides are known to cause allergic reactions, particularly in the form of contact dermatitis or hypersensitivity. These medications are antibiotics frequently used in ophthalmology to treat bacterial infections, and while they are effective, some patients may develop an allergic response to them. The allergic reactions could stem from the active drug itself or from preservatives commonly used in ophthalmic formulations.

Beta blockers, carbonic anhydrase inhibitors, and prostaglandins generally have a low incidence of allergic reactions. Beta blockers are primarily used for their intraocular pressure-lowering effects in glaucoma management, and while they can lead to systemic side effects, allergic responses are quite rare. Carbonic anhydrase inhibitors are also primarily utilized for lowering intraocular pressure and are known to have more side effects related to systemic absorption. Meanwhile, prostaglandins are often well-tolerated, although they can cause local side effects such as conjunctival hyperemia or changes in eyelash appearance rather than true allergic reactions.

In summary, aminoglycosides are specifically associated with the potential for allergic reactions in some patients, which makes them the correct answer in this context.