ESCRS - FP25.10 - Correlation Of Pupil Size With Visual Quality After Implantation Of A Trifocal Intraocular Lens

Correlation Of Pupil Size With Visual Quality After Implantation Of A Trifocal Intraocular Lens

Published 2024 - 42nd Congress of the ESCRS

Reference: FP25.10 | Type: Free paper | DOI: 10.82333/0yex-v978

Authors: Petra Davidova* 1 , Klemens Kaiser 1 , Marvin Biller 1 , Eva Hemkeppler 1 , Myriam Böhm 1 , Thomas Kohnen 1

1Goethe-University,Frankfurt,Germany

Purpose

To analyze correlation of pupil size (PS) in scotopic (sco; 0 lux), mesopic (mes; 1 lux) and photopic (pho; 16 lux) conditions and subjective, visual quality (VQ) three months after implantation of a diffractive, trifocal intraocular lens (IOL).

Setting

Department of Ophthalmology, Goethe-University, Frankfurt, Germany

Methods

Patients suitable for bilateral implantation of a diffractive, trifocal IOL were included in this prospective, clinical study. Three months postoperatively PS with a binocular, infrared based pupillometer (PupilX, Albomed) in 0, 1 and 16 lux was measured. Binocular subjective VQ for watching TV, driving at day & night, attending theatre, cooking, reading newspaper, working with PC and doing domestic work was obtained. For monocular VQ, patients reported their impairment due to glare, halos, starbursts, double-contour and blurry vision for scotopic-low mesopic (SC), mesopic (MC) and photopic (PC) conditions for right and left eye each.

Results

52 patients (21 male) with mean age of 68.13 (40-85) years were included. 54 eyes received non-toric vs. 50 toric IOLs. 3 months postoperatively, PS was mean 5.42 mm in 0, 4.24 mm in 1 and 3.38 mm in 16 lux. For binocular VQ, only newspaper significantly correlated with mesPS (r=0.199) and phoPS (r=0.192). Impairment due to halos was significant for scoPS (r=0.239) and mesPS (r=0.259) in SC and phoPS in MC (r=0.295) and PC (r=0.203). Double contour and blurry vision were significant for scoPS (r=0.263 & r=0.215) and mesPS (r=0.203 & r=0.194) in SC and starbursts for phoPS (r=0.194) in PC. In multiple regression analysis, PS still remained significant for most optical phenomena.

Conclusions

Subjective VQ and impairment due to optical phenomena correlates only weakly or not at all with scotopic, mesopic and photopic pupil size after implantation of a diffractive, trifocal IOL.