Reversal of mydriasis by dapiprazole

The effect of topical dapiprazole, an alpha-adrenergic receptor blocker, in reversing mydriasis was studied in 50 subjects who received tropicamide 1% and phenylephrine 2.5%. There was a significant difference in the decrease in pupil size between the eye that received dapiprazole and the control eye. This study suggests that dapiprazole 0.5% eye drops are effective and safe in reversing mydriasis after instillation of tropicamide 1% and phenylephrine 2.5%.