Effect Of Pupil Size On The Near Vision Achieved With The Puresee Edof Lens
Published 2025 - 43rd Congress of the ESCRS
Reference: FP05.07 | Type: Free paper | DOI: 10.82333/1gky-kf30
Authors: Zhenzhen Liu 1 , Yunqian Li 1 , Houshuo Wang* 1
1Cataract,Zhongshan Ophthalmic Center,GuangZhou,China
Purpose
To evaluate the impact of pupil size on the optical performance of the Puresee refractive extended depth of focus (EDOF) lens at reading distance.
Setting
Optegra Eye Healthcare, UK, across multiple sites in England.
Methods
A retrospective analysis of 627 eyes over a 12-month period (November 2023 – October 2024) undergoing implantation of the Puresee EDOF intraocular lens at Optegra Eye Healthcare. Preoperative pupillometry measurements had been obtained using the IOL Master 700 and Pentacam. Statistical analysis was performed to assess the relationship between pupil size and near vision performance.
Results
A statistically significant but weak correlation was found between smaller pupil diameter and improved near visual performance. The correlation coefficient was 0.128 for IOL Master 700 pupillometry and 0.065 for Pentacam pupillometry.
Conclusions
Three-quarters of emmetropic patients achieved functional near vision of N8 or better with the Puresee IOL implant. A small but statistically significant correlation was observed between smaller pupil size and improved near visual acuity, likely due to an increased depth of field.