Comparison Of Continuous Curvilinear Capsulorhexis Outcomes Between Two Femtosecond Laser Cataract Surgery Platforms
Published 2023 - 41st Congress of the ESCRS
Reference: PO0490 | Type: Free paper | DOI: 10.82333/yqg3-rj18
Authors: Youngsong Suh* 1 , Tae-im Kim 1 , Kyoung Yul Seo 1 , Ikhyun Jun 1
1Ophthalmology,Yonsei University College of Medicine,Seoul,Korea, Republic Of
Purpose
Femtosecond laser-assisted cataract surgery(FLACS) has shown its ability to enhance surgical precision by enabling surgeons to create more accurate and consistent continuous curvilinear capsulorhexis (CCC). The purpose of this study is to compare CCC outcomes between two commonly used femtosecond laser platforms, the LenSx and Catalys systems.
Setting
A single center, retrospective cohort study conducted at Severance hospital, Seoul, Republic of Korea.
Methods
This study enrolled 485 eyes of 284 patients who underwent FLACS using either the LenSx or Catalys platform by single surgeon between January 2022 and February 2023. After femtosecond laser application, the CCC outcome was carefully examined in each case and classified into 4 categories (type 1: complete, type 2: microadhesions, type 3: incomplete, and type 4: complete but incontinuous) based on the JCRS article published in 2014 by Nagy et al.
Results
A total of 485 eyes were included in the study, with 277 eyes undergoing surgery with the LenSx platform and 208 eyes with the Catalys platform. Among the LenSx group, 230 eyes (83.0%) were classified as type 1, 29 eyes (10.5%) as type 2, 11 eyes (4.0%) as type 3, and 7 eyes (2.5%) as type 4. In the Catalys group, 160 eyes (76.9%) were classified as type 1, 44 eyes (21.2%) as type 2, 1 eye (0.5%) as type 3, and 3 eyes (1.4%) as type 4. There was no statistically significant difference in the rate of type 1 (p=0.09) and type 4 (p=0.41) between the two groups. However, microadhesion was more common in the Catalys group (p=0.001), while incomplete CCC was more common in the LenSx group (p=0.014).
Conclusions
Both LenSx and Catalys platforms were able to achieve free-floating capsulotomy outcomes in most cases. However, a significant proportion of eyes had sub-optimal capsulotomy outcomes. Additionally, the rate of type 2 and 3 capsulotomy outcomes differed between the groups, which could be attributed to their different docking systems and patient interfaces