Impact Of Phacoemulsification On Pupil Dynamics And High Order Aberrations

Published 2024 - 42nd Congress of the ESCRS

Reference: PO635 | Type: Poster | DOI: 10.82333/p5pm-aa08

Authors: Miguel Ibanez-Ezparza* ¹ , Carlos Alberto Rodriguez-Barrientos ² , Roberto Gonzalez-Salinas ¹ , Miguel Angel Ibañez-Hernandez ³

¹Anterior Segment Surgery Department,Asociación para Evitar la Ceguera en México, IAP,Mexico City,Mexico, ²Tecnológico de Monterrey, Escuela de Medicina y Ciencias de la Salud,Monterrey,Mexico, ³Anterior Segment Surgery Department,Hospital Puerta de Hierro,Zapopan,Mexico

Purpose

To evaluate changes in pupil diameter and high order aberrations after phacoemulsification and assess their correlation with age.

Setting

Ophthalmology Unit, Anterior Segment Surgery Department, Hospital Puerta de Hierro, Zapopan, Jalisco, México.

Methods

This study examined 97 eyes who had undergone phacoemulsification surgery. We evaluated pupil diameter and high order aberrations (HOA) in both photopic and mesopic conditions before and after the surgery by using wavefront aberrometer and pupillometer software. The measurements were divided into age groups (41-50, 51-60, 61-70, 71-80, and 81-90), and the differences in pupil diameter and magnitude in HOA in photopic and mesopic were analyzed in relation to the different age groups.

Results

After undergoing phacoemulsification surgery, a noticeable decrease in pupil diameter was observed in patients under both photopic and mesopic conditions. The analysis of the relationship between age and pupillary dynamics showed that individuals between the ages of 51-70 years experienced a significant change in their pupillary response. Moreover, patients in this age group exhibited a reduction in the magnitude of High Order Aberrations (HOA) in different lighting conditions.

Conclusions

After cataract surgery, patients between the ages of 51 and 70 experienced a significant reduction in pupil diameter under both photopic and mesopic light conditions. These changes could have clinical implications for the performance of intraocular lenses, as a reduction in the magnitude of higher-order aberrations is associated with a decrease in pupil diameter.