Nyxol (0.75% Phentolamine Ophthalmic Solution) to Reverse Pharmacologically-Induced Mydriasis in Pediatric Subjects

The objectives of this study are: * To evaluate the safety of Nyxol in pediatric subjects * To evaluate the efficacy of Nyxol to expedite the reversal of pharmacologically induced mydriasis in pediatric subjects The Sponsor intends to use this study to evaluate Nyxol in pediatric subjects aged 3 to 11 for the indication "the treatment of pharmacologically induced mydriasis produced by adrenergic (phenylephrine) or parasympatholytic (tropicamide) agents, or a combination thereof."