Which drop is used with tropicamide for adult dilation?

Which drop is used with tropicamide for adult dilation?

• A. Phenylephrine 2.5% or Neo-Synephrine
• B. Tropicamide
• C. Cyclopentolate
• D. Atropine

Answer: (A)

Adult dilation often uses a combination approach: tropicamide opens the pupil quickly by blocking the muscarinic receptors, but adding phenylephrine, an alpha-1 agonist, produces a stronger and more reliable dilation by stimulating the iris dilator muscle. Phenylephrine 2.5% (Neo-Synephrine) is the standard companion drop with tropicamide to achieve adequate mydriasis for the exam. Cyclopentolate or atropine can dilate as well, but they’re not the usual partners with tropicamide for routine adult dilation.

Adult dilation often uses a combination approach: tropicamide opens the pupil quickly by blocking the muscarinic receptors, but adding phenylephrine, an alpha-1 agonist, produces a stronger and more reliable dilation by stimulating the iris dilator muscle. Phenylephrine 2.5% (Neo-Synephrine) is the standard companion drop with tropicamide to achieve adequate mydriasis for the exam. Cyclopentolate or atropine can dilate as well, but they’re not the usual partners with tropicamide for routine adult dilation.