ROTATIONAL STABILITY OF A TORIC MONOFOCAL INTRAOCULAR LENS WITH AN EXTENDED DEPTH OF FOCUS

Published 2022 - 26th ESCRS Winter Meeting

Reference: FP33 | Type: Abstracts | DOI: 10.82333/j9m2-2y33

Authors: Johannes Zeilinger* ¹ , Manuel Ruiss ¹ , Caroline Pilwachs ¹ , Julius Hienert ¹ , Oliver Findl ¹

¹Ophtalmology,Vienna Insititute for Research in Ocular Surgery,Vienna,Austria

Purpose

The axis alignment of a toric intraocular lens (IOL) is a critical parameter for its efficacy and the patient’s satisfaction with the surgical outcome. This study aims to evaluate the rotational stability of a new toric monofocal IOL, which additionally promises an improved postoperative intermediate visual acuity.

Setting

Vienna institute for Research in Ocular Surgery (VIROS), Hanusch Hospital Vienna

Methods

Prospective, unmasked, single-center study. 50 eyes of 50 patients with regular corneal astigmatism ≥ 0.75 diopters were included into this study. The Tecnis Eyhance Toric II (Johnson & Johnson Vision) IOL was implanted in one eye of each study patient. Pictures of the alignment axis of the IOL were taken intraoperatively, one hour, one week, and 3 months after surgery. Autorefraction and subjective refraction as well as uncorrected and corrected distance (4 meters) and intermediate (66 centimeters) visual acuity were assessed at the 3-months visit. Furthermore a Purkinje meter was used to measure tilt and decentration of the IOL at the last visit.

Results

A preliminary analysis of 37 eyes of 37 patients has shown that the mean absolute error in IOL axis position between the intraoperative and the 1-hour postoperative measurement was 1.8+/-2.1° and 1.2+/-1.0° between the measurements 1 hour and 1 week postoperatively. No statistically significant difference could be detected in axis alignment between the different timepoints (repeated-measures ANOVA, p 0.398) The preoperative CDVA was 0.28+/-0.14 LogMAR and 0.06+/-0.12 LogMar 1 week after surgery (Wilcoxon signed rank test, P < 0.0001). The MAE between aimed and measured spherical equivalent was 0.29+/-0.34 diopters (Wilcoxon signed rank test, P=0.442)

Conclusion

The preliminary results show good rotational stability, corrected distance visual acuity and a small difference between aimed and measured spherical equivalent. The final 1-week and 3-months data of this study will be presented at the ESCRS congress.