Mydriatic Apr 2026

-adrenergic receptors on the iris dilator muscle, causing it to contract and dilate the pupil.

Mydriatics are pharmacological substances that induce (mydriasis) by stimulating the iris dilator muscle or inhibiting the parasympathetic tone of the iris sphincter muscle. They are foundational tools in modern ophthalmology, essential for comprehensive diagnostic examinations and successful surgical outcomes. 1. Mechanisms of Action mydriatic

These agents, such as phenylephrine , act as agonists at ﾎｱ1alpha sub 1 -adrenergic receptors on the iris dilator muscle, causing

Mydriatic agents generally fall into two categories based on their physiological pathway: such as phenylephrine