Analysis of Intraocular Lens Decentration and Tilt After Femtosecond Laser-assisted Cataract Surgery Using Swept-source Anterior Optical Coherence Tomography

Overview

Journal Heliyon

Specialty Social Sciences

Date 2024 May 3

PMID 38699005

Authors

Yunhan Lee

Hoon Il Choi

Seonha Bae

Ho Seok Chung

Jae Yong Kim

Hun Lee

Affiliations

Soon will be listed here.

Abstract

Objective: To evaluate and compare the magnitude of intraocular lens (IOL) decentration and tilt following conventional and femtosecond laser-assisted cataract surgery (FLACS) using swept-source anterior optical coherence tomography (S-OCT).

Methods: In this retrospective observational study, we enrolled patients who underwent conventional cataract surgery or FLACS with the implantation of hydrophobic 1-piece monofocal IOL. The magnitude of IOL decentration and tilt were measured using S-OCT. Visual acuity, intraocular pressure, spherical equivalent, axial length, contrast sensitivity, and satisfaction questionnaire were evaluated before and one-month post-surgery. Additionally, postoperative internal cylinder measurements were obtained using a wavefront aberrometer. Correlation factors between each parameter and IOL decentration or tilt were analyzed.

Results: This study included 100 eyes from 100 patients. Mean IOL decentration and tilt were 0.21 ± 0.13 mm and 5.01 ± 1.49°, respectively. Conventional cataract surgery (versus FLACS, P = 0.001) and male sex (versus female, P = 0.047) were significantly correlated with higher postoperative decentration. Preoperative lens diameter (P < 0.001), preoperative lens tilt (P = 0.007), and preoperative intraocular pressure (P = 0.027) were correlated with higher postoperative tilt. Fifty eyes that underwent FLACS demonstrated mean postoperative decentration of 0.21 ± 0.13 mm and tilt of 4.64 ± 1.48°. Compared with the conventional surgery group, the FLACS group significantly differed in postoperative decentration (0.30 ± 0.12 mm, P < 0.001) but not in tilt (5.03 ± 1.35°, P = 0.173). Postoperative visual acuity did not significantly differ between the two groups.

Conclusion: Patients who underwent FLACS demonstrated better IOL decentration and tilt than those who underwent conventional cataract surgery one-month post-surgery. However, differences in IOL decentration and tilt did not affect postoperative visual acuity.

Citing Articles

Analysis of intraocular lens tilt and decentration after cataract surgery in eyes with high myopia using the anterior segment optical coherence tomography.

Jeon Y, Park N, Lee H, Eah K, Han J, Chung H Sci Rep. 2024; 14(1):27987.

PMID: 39543310 PMC: 11564970. DOI: 10.1038/s41598-024-78759-8.

Assessment of intraocular lens tilt and decentration after femtosecond laser-assisted and conventional cataract surgery at 12 months and beyond.

Kim B, Lee H, Jeon Y, Eah K, Park N, Chung H BMC Ophthalmol. 2024; 24(1):459.

PMID: 39428465 PMC: 11492500. DOI: 10.1186/s12886-024-03720-2.

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