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. 2024 Oct 21;24(1):459.
doi: 10.1186/s12886-024-03720-2.

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

Bia Z Kim #  1 , Hayoung Lee #  2 , Yoo Young Jeon  2 , Kyu Sang Eah  2 , Nahyun Park  2 , Ho Seok Chung  2 , Jae Yong Kim  2 , Hungwon Tchah  3   4 , Hun Lee  5   6   7
Affiliations

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

Bia Z Kim et al. BMC Ophthalmol. .

Abstract

Purpose: To compare long-term intraocular lens (IOL) decentration and tilt following femtosecond laser-assisted cataract surgery (FLACS) and conventional surgery using swept-source anterior segment ocular coherence tomography (SS-ASOCT).

Methods: In this retrospective cross-sectional study, all patients underwent FLACS or conventional cataract surgery. Those with a minimum of 12-months follow-up since surgery were included. Patients with surgical complications were excluded. Demographics, preoperative ocular measurements (axial length, anterior chamber depth), and postoperative measurements [corrected distance visual acuity (CDVA), autorefraction, keratometry, IOL type] were collected. Postoperative IOL tilt and decentration were compared using SS-ASOCT between patients with FLACS and conventional cataract surgery. Subgroup analysis was conducted to analyze tilt and decentration by haptic type (single-piece vs. three-piece).

Results: A total of 188 eyes were included [110 (58.5%) in the FLACS group and 78 (41.5%) in the conventional group]. No differences were observed between the FLACS and conventional groups regarding preoperative parameters. FLACS resulted in less IOL decentration compared to conventional cataract surgery (170 μm vs. 240 μm, p = 0.002). No statistically significant differences were observed between the FLACS and conventional groups in the magnitude and axis of IOL tilt. Both groups had a trend of IOL tilt toward the inferotemporal aspects. Moreover, no difference regarding postoperative CDVA, spherical equivalent, and keratometric astigmatism was observed.

Conclusions: FLACS resulted in significantly better long-term IOL centration than conventional surgery with manual capsulotomy. No significant difference in IOL tilt or postoperative CDVA was observed between FLACS and conventional cataract surgery.

Keywords: Conventional cataract surgery; Decentration; Femtosecond laser-assisted cataract surgery; Swept-source anterior segment ocular coherence tomography; Tilt.

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Conflict of interest statement

The authors declare no competing interests.

Figures

Fig. 1
Fig. 1
Measurement of intraocular lens tilt and decentration using swept-source anterior segment ocular coherence tomography
Fig. 2
Fig. 2
Scatter plot of intraocular lens decentration in the right and left eyes following femtosecond laser-assisted and conventional cataract surgery. FLACS = femtosecond laser-assisted cataract surgery
Fig. 3
Fig. 3
Scatter plot of intraocular lens tilt in right and left eyes following femtosecond laser-assisted and conventional cataract surgery. FLACS = femtosecond laser-assisted cataract surgery
See this image and copyright information in PMC

References

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