AUTHOR=Sun Tong , Liu Yiyun , Zhao Xiaorui , Gao Yufei , Yang Tingting , Lan Qianqian , Tang Chuhao , Qi Hong 

TITLE=Presbyopia-correcting performance and subjective outcomes of a trifocal intraocular lens in eyes with different axial lengths: A prospective cohort study

JOURNAL=Frontiers in Medicine

VOLUME=9

YEAR=2022

URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2022.980110

DOI=10.3389/fmed.2022.980110

ISSN=2296-858X

ABSTRACT=<sec><title>Purpose</title><p>To compare the presbyopia-correcting performance, visual quality, satisfaction and life quality after implantation of a diffractive trifocal intraocular lens (IOL) in eyes with different axial lengths (AL).</p></sec><sec><title>Methods</title><p>This prospective cohort study enrolled patients with implantation of a trifocal IOL. Manifest refraction, uncorrected and distance-corrected visual acuity at different distances, contrast sensitivity, aberrations and IOL decentration were measured 3 months after surgery. Spectacle independence, adverse photic phenomena, overall satisfaction and life quality were assessed with a questionnaire.</p></sec><sec><title>Results</title><p>This study included 61 eyes of 61 patients: 16 eyes in the short AL group, 28 eyes in the control group and 17 eyes in the long AL group. Postoperatively, the prediction error (PE) of spherical equivalent showed a difference (<italic>P</italic> = 0.002). The uncorrected near visual acuity in the long AL group was higher (<italic>P</italic> = 0.047). Although a higher IOL decentration was obtained in the long AL group (<italic>P</italic> = 0.034), no significant difference was found in contrast sensitivity and aberrations (all <italic>P</italic> &gt; 0.05). In the questionnaire, patients in the long AL group showed a relatively lower spectacle independence at near distance (<italic>P</italic> = 0.060) and had difficulties in near activities, mental health and role in daily life (<italic>P</italic> = 0.003, 0.021, and 0.033). However, no significant difference was observed in overall satisfaction (<italic>P</italic> = 0.124).</p></sec><sec><title>Conclusion</title><p>With detailed preoperative evaluation, the trifocal IOL provided satisfactory visual outcomes for patients with different AL. AL had a certain influence on predictability and IOL decentration. And for patients with long AL, the inadaptability to the near focal point might become an important problem.</p></sec>