![]() ![]() Studies of visual performance when the entrance pupil is artificially modified by viewing through small apertures speak directly to the original query: What is the optimal pupil size? As this article explains, the answer to this question is that it depends. Psychophysical studies suggest that, for a well-focused eye, pupil size iterates to whatever achieves the best visual acuity, 1 grating detection, 2 and retinal image quality 3 for viewing objects at various levels of environmental light. This new approach to presbyopia was heralded by the recent first-in-class FDA approval of Vuity (pilocarpine HCl ophthalmic solution 1.25%, Allergan) and affirmative decision on the premarket approval application for the IC-8 small-aperture IOL (AcuFocus), both for the treatment of presbyopia.Ĭhanges in pupillary diameter are highly dynamic they are influenced by accommodative effort, lighting, refractive error, emotional state, age, and other factors. Today, the subject has practical implications given the number of pupil-modulating drops and small-aperture IOLs in development to treat presbyopia. Perspectives On Prevalence, Gaps, And Management Of MGDĬonsiderations of optimal pupil size used to be a largely intellectual exercise. ![]() Using AcrySof ® IQ PanOptix ® and Vivity™ in Your Practice Pearls From the Experts: Part 3 Administration Techniques Strategies for Removing Subincisional Cortex The Benefits of Combining MD and OD Practices Phacoemulsification After Pars Plana Vitrectomy: Cataract Surgery Concepts and Pearls When All Hell Breaks Loose: Zonular Dialysis and the Placement of a Synergy IOLģ0-Gauge Needle Levitation of a Dropped IOL Traumatic Flap Dislocation After Laser Vision Correctionįour-Incision Phaco Chop and Phaco Complications Pearls for Keratoconus Screening and Treatment ![]()
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