Miotics such as pilocarpine are associated with which agent in the context of this material?

Miotics such as pilocarpine are associated with which agent in the context of this material?

• A. Atropine
• B. Pilocarpine
• C. Epinephrine
• D. Dipivefrin

Answer: (B)

Miotics are drugs that stimulate muscarinic receptors in the eye to cause pupil constriction and ciliary muscle contraction, which increases aqueous humor outflow and lowers intraocular pressure. Pilocarpine is a classic direct-acting muscarinic agonist, so it is itself a miotic. The question points to this agent as the one associated with miotics, since the term describes pilocarpine’s action. The other options represent different mechanisms (atropine is a muscarinic antagonist, while epinephrine and its prodrug dipivefrin are adrenergic agents), not miotics.

Miotics are drugs that stimulate muscarinic receptors in the eye to cause pupil constriction and ciliary muscle contraction, which increases aqueous humor outflow and lowers intraocular pressure. Pilocarpine is a classic direct-acting muscarinic agonist, so it is itself a miotic. The question points to this agent as the one associated with miotics, since the term describes pilocarpine’s action. The other options represent different mechanisms (atropine is a muscarinic antagonist, while epinephrine and its prodrug dipivefrin are adrenergic agents), not miotics.