ESCRS - PP22.18 - Comparison Of Toric Intraocular Lens Performance In Femtosecond Laser-Assisted Cataract Surgery And Conventional Phacoemulsification

Comparison Of Toric Intraocular Lens Performance In Femtosecond Laser-Assisted Cataract Surgery And Conventional Phacoemulsification

Published 2022 - 40th Congress of the ESCRS

Reference: PP22.18 | Type: ESCRS 2022 - Posters | DOI: 10.82333/fjf2-v668

Authors: Sheng-Chuan Ma* 1 , Ning Hung 2 , Altantsetseg Altansukh 3 , David Ma 2

1Department of Medicine,Catholic University of the Sacred Heart,Rome,Italy, 2Department of Ophthalmology,Chang Gung Memorial Hospital,Taoyuan,Taiwan, Province of China, 3Department of Ophthalmology,Health Center of Bayangol District,Ulaanbaatar,Mongolia

Purpose

With the accurate position and shape of capsulotomy created by laser, femtosecond laser-assisted cataract surgery (FLACS) has been proposed to facilitate precise implantation of toric IOL. However, to date only few articles have reported the surgical outcome of toric IOL implantation in FLACS. This study aims to compare the accuracy and visual outcome following toric IOL implantation in FLACS and conventional phacoemulsification (phaco).

Setting

This is a single center, retrospective study.

Methods

Patients who received FLACS (Alcon LenSx System) or phaco (Infiniti) and implantation of Alcon toric IOL (IQ Toric SN6ATx and IQ PanOptix Toric TFNTx0) from 2018 and 2021 were enrolled. The electronic medical records were reviewed, and following data were retrieved: 1. Pre-OP cylinder power as measured by IOLMaster 500 biometer on the same day of operation. 2. Proposed IOL axis calculated by Alcon online toric IOL calculator. 3. Measured IOL axis after pupil dilatation at post-OP 6 months (ranging from 3 to 12 months). 4. Cylinder value measured by autorefractometer. 5. Uncorrected distant VA (excluding eyes with vitreoretinal disorders or targeted refraction more than -1.0 D). Independent two-sample t-test was used for data comparison.

Results

21 eyes from 19 patients receiving LenSx, and 36 eyes from 29 patients receiving phaco were recruited. The mean age was 65.6±11.3 vs 61.0±15.6 y/o (p=0.330). The pre-OP cylinder value was 2.04±0.99 D in the LenSx group, and 2.22±1.16 D in the phaco group (p=0.737). At post-OP 6 M, the mean IOL axis deviation was 2.9±2.8 degrees in the LenSx group, and 4.3±4.5 degrees in the phaco group (p=0.197). The residual astigmatism at post-OP 6 M detected by autorefractometer was 0.47±0.26 D in the LenSx group, and 0.66±0.36 D in the phaco group (p=0.053). Finally, the uncorrected distant logMAR vision was 0.19±0.14 in the LenSx group, and 0.18±0.16 in the phaco group (p=0.650). 

Conclusions

Although toric IOL implanted after LenSx showed tendency for less IOL deviation and less residual astigmatism, statistical significance was not reached due to limited case number and variation in the data. Furthermore, unaided distant vision in the two groups was similar, suggesting that FLACS may not further promote visual performance in toric IOL implantation.