ESCRS - POCAT282 - Six-Month Intraocular Lens Stability After Femtosecond Laser-Assisted Cataract Surgery In Eyes With Zonular Weakness

Six-Month Intraocular Lens Stability After Femtosecond Laser-Assisted Cataract Surgery In Eyes With Zonular Weakness

Published 2026 - 44th Congress of the ESCRS

Reference: POCAT282 | Type: Free paper | DOI: 10.82333/qns4-1q07

Authors: Dr Huynh Phuc Nguyen* 1 , Dr Kim Thanh Doan 2 , Dr Thi Que Anh Vu 3 , Dr Trung Kien Hoang 4 , Dr Tri Thuan Ngo 4 , Dr Nguyen Viet Huong Duong 5

1Hanoi Medical University,Hanoi,Viet Nam;Saigon Vinh Eye Hospital,Nghe An,Viet Nam, 2Pham Ngoc Thach University of Medicine,Ho Chi Minh,Viet Nam, 3Hanoi Medical University,Hanoi,Viet Nam, 4Saigon Vinh Eye Hospital,Nghe An,Viet Nam, 5University of Medicine and Pharmacy at Ho Chi Minh city,Ho Chi Minh,Viet Nam

Purpose

To evaluate the clinical outcomes, postoperative intraocular lens (IOL) positional stability, safety, and effectiveness of femtosecond laser-assisted cataract surgery (FLACS) in eyes with zonular weakness.

Setting

Saigon Vinh Eye Hospital, Vietnam, from October 2025 to March 2026

Methods

This was a prospective descriptive study. Cataract patients with mild-to-moderate zonular weakness (< 6 clock hours) undergoing FLACS were enrolled and followed postoperatively at 1 day, 1 week, 1 month, 3 months, and 6 months.

Results

A total of 62 eyes meeting the inclusion criteria were analyzed. Femtosecond laser was used for capsulohexis, lens fragmentation, and corneal incision. At 1 week postoperatively, 59/62 cases (95.2%) achieved visual acuity better than 20/32, with stable vision maintained through 6 months. Mild corneal edema (1+) was observed in 2 cases (3.2%) on postoperative day 1 (grade 4 cataract). Intraoperatively, pupillary constriction to approximately 4 mm after femtosecond laser fragmentation occurred in 2 cases. No posterior capsule rupture or hyphema occurred. A circular, well-centered 5.2 mm capsulotomy was achieved in all eyes, and a capsular tension ring was required in 1 case. At 6 months, all IOLs remained well-centered without decentration.

Conclusions

FLACS is a safe and effective approach in eyes with zonular weakness, providing precise capsulorhexis, reducing mechanical stress on the capsular-zonular complex, and minimizing additional zonular damage, thereby maintaining IOL positional stability.