Comparison of toric implantable collamer lens alignment accuracy: VERION image-guided system versus manual marking.

IF 1.8 4区医学 Q2 OPHTHALMOLOGY

International journal of ophthalmology Pub Date : 2025-10-18 eCollection Date: 2025-01-01 DOI:10.18240/ijo.2025.10.07

Xiao-Ying He, Jun Wang, Min-Jie Yuan, Zi-Xuan Yang, Wei Han

{"title":"Comparison of toric implantable collamer lens alignment accuracy: VERION image-guided system versus manual marking.","authors":"Xiao-Ying He, Jun Wang, Min-Jie Yuan, Zi-Xuan Yang, Wei Han","doi":"10.18240/ijo.2025.10.07","DOIUrl":null,"url":null,"abstract":"Aim: To compare the accuracy of manual marking versus an image-guided system for toric implantable collamer lens (TICL) implantation and evaluate the short-term postoperative rotational stability of TICL and corneal surgically induced astigmatism vector (SIA).Methods: Retrospective analysis was conducted on eyes with TICL alignment achieved through manual marking (n=75) or VERION image-guided system-assisted marking (n=83). Each group was further classified into horizontal and vertical subgroups based on implant orientation. Additionally, patients were categorized into superior and temporal incision subgroups according to the position of main corneal incision. The misalignment and rotational stability of TICL were analyzed using slit-lamp anterior segment photography. Surgical predictability, efficacy, safety, and corneal SIA were also evaluated.Results: In general, the TICL implantation with manual and digital image-guided systems all achieved robust predictability, efficacy, and safety. The misalignment of TICL was comparable between the manual and VERION groups (0.16°±3.97° vs 0.52°±5.59°, P=0.633), while a significant difference was observed in the absolute misalignment of TICL between the two groups (3.02°±2.55° vs 4.28°±3.61°, P=0.043). There were no significant differences in the distribution of TICL misalignment between the manual and VERION groups or between horizontal and vertical implant orientation groups (P>0.05). Furthermore, different orientations of TICL placement did not show statistically significant differences in rotational stability (P=0.46). Statistically significant differences were found in anterior corneal SIA between the manual and VERION groups (0.46±0.27 vs 0.33±0.21 D, P=0.001), especially for superior incision position (0.60±0.27 vs 0.35±0.23 D, P<0.0001). The anterior SIA exhibited a significant difference between superior and temporal incisions in the manual group (0.60±0.27 vs 0.35±0.20 D, P<0.0001).Conclusion: Compared with the conventional manual marking method, this study indicates that the digital image-guided system with VERION is safe and effective in TICL implantation. The digital system offers the advantage of minimizing corneal SIA compared to the manual method.","PeriodicalId":14312,"journal":{"name":"International journal of ophthalmology","volume":"18 10","pages":"1864-1874"},"PeriodicalIF":1.8000,"publicationDate":"2025-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12454006/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International journal of ophthalmology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.18240/ijo.2025.10.07","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/1/1 0:00:00","PubModel":"eCollection","JCR":"Q2","JCRName":"OPHTHALMOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

Aim: To compare the accuracy of manual marking versus an image-guided system for toric implantable collamer lens (TICL) implantation and evaluate the short-term postoperative rotational stability of TICL and corneal surgically induced astigmatism vector (SIA).

Methods: Retrospective analysis was conducted on eyes with TICL alignment achieved through manual marking (n=75) or VERION image-guided system-assisted marking (n=83). Each group was further classified into horizontal and vertical subgroups based on implant orientation. Additionally, patients were categorized into superior and temporal incision subgroups according to the position of main corneal incision. The misalignment and rotational stability of TICL were analyzed using slit-lamp anterior segment photography. Surgical predictability, efficacy, safety, and corneal SIA were also evaluated.

Results: In general, the TICL implantation with manual and digital image-guided systems all achieved robust predictability, efficacy, and safety. The misalignment of TICL was comparable between the manual and VERION groups (0.16°±3.97° vs 0.52°±5.59°, P=0.633), while a significant difference was observed in the absolute misalignment of TICL between the two groups (3.02°±2.55° vs 4.28°±3.61°, P=0.043). There were no significant differences in the distribution of TICL misalignment between the manual and VERION groups or between horizontal and vertical implant orientation groups (P>0.05). Furthermore, different orientations of TICL placement did not show statistically significant differences in rotational stability (P=0.46). Statistically significant differences were found in anterior corneal SIA between the manual and VERION groups (0.46±0.27 vs 0.33±0.21 D, P=0.001), especially for superior incision position (0.60±0.27 vs 0.35±0.23 D, P<0.0001). The anterior SIA exhibited a significant difference between superior and temporal incisions in the manual group (0.60±0.27 vs 0.35±0.20 D, P<0.0001).

Conclusion: Compared with the conventional manual marking method, this study indicates that the digital image-guided system with VERION is safe and effective in TICL implantation. The digital system offers the advantage of minimizing corneal SIA compared to the manual method.

查看原文本刊更多论文

环形可植入collcoller透镜对准精度的比较：VERION图像引导系统与手动标记。

目的：比较人工标记系统与图像引导系统在环形人工晶状体（TICL）植入术中的准确性，评价TICL与角膜手术性散光载体（SIA）术后短期旋转稳定性。方法：回顾性分析通过手动标记（n=75）或VERION图像引导系统辅助标记（n=83）实现TICL对齐的眼睛。每组根据种植体的方位进一步分为水平亚组和垂直亚组。根据角膜主切口的位置将患者分为上切口组和颞切口组。采用裂隙灯前段摄影技术分析TICL的错位和旋转稳定性。手术的可预测性、有效性、安全性和角膜SIA也进行了评估。结果：总的来说，人工和数字图像引导系统的TICL植入均具有较强的可预测性、有效性和安全性。手动组和VERION组的TICL偏位具有可比性（0.16°±3.97°vs 0.52°±5.59°，P=0.633），而两组的TICL绝对偏位具有显著性差异（3.02°±2.55°vs 4.28°±3.61°，P=0.043）。手动组和VERION组、水平组和垂直组的TICL错位分布差异无统计学意义（P < 0.05）。此外，不同的TICL放置方向在旋转稳定性方面没有统计学差异（P=0.46）。手工组与VERION组的前角膜SIA评分差异有统计学意义（0.46±0.27 vs 0.33±0.21 D， P=0.001），尤其是上切口位置（0.60±0.27 vs 0.35±0.23 D, Pvs 0.35±0.20 D， P）。结论：与传统手工标记方法相比，VERION数字图像引导系统在TICL植入术中安全有效。与手工方法相比，数字系统提供了最小化角膜SIA的优势。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

International journal of ophthalmology Medicine-Ophthalmology

CiteScore

2.50

自引率

7.10%

发文量

3141

审稿时长

4-8 weeks

期刊介绍： · International Journal of Ophthalmology-IJO (English edition) is a global ophthalmological scientific publication and a peer-reviewed open access periodical (ISSN 2222-3959 print, ISSN 2227-4898 online). This journal is sponsored by Chinese Medical Association Xi’an Branch and obtains guidance and support from WHO and ICO (International Council of Ophthalmology). It has been indexed in SCIE, PubMed, PubMed-Central, Chemical Abstracts, Scopus, EMBASE , and DOAJ. IJO JCR IF in 2017 is 1.166. IJO was established in 2008, with editorial office in Xi’an, China. It is a monthly publication. General Scientific Advisors include Prof. Hugh Taylor (President of ICO); Prof.Bruce Spivey (Immediate Past President of ICO); Prof.Mark Tso (Ex-Vice President of ICO) and Prof.Daiming Fan (Academician and Vice President, Chinese Academy of Engineering. International Scientific Advisors include Prof. Serge Resnikoff (WHO Senior Speciatist for Prevention of blindness), Prof. Chi-Chao Chan (National Eye Institute, USA) and Prof. Richard L Abbott (Ex-President of AAO/PAAO) et al. Honorary Editors-in-Chief: Prof. Li-Xin Xie(Academician of Chinese Academy of Engineering/Honorary President of Chinese Ophthalmological Society); Prof. Dennis Lam (President of APAO) and Prof. Xiao-Xin Li (Ex-President of Chinese Ophthalmological Society). Chief Editor: Prof. Xiu-Wen Hu (President of IJO Press). Editors-in-Chief: Prof. Yan-Nian Hui (Ex-Director, Eye Institute of Chinese PLA) and Prof. George Chiou (Founding chief editor of Journal of Ocular Pharmacology & Therapeutics). Associate Editors-in-Chief include: Prof. Ning-Li Wang (President Elect of APAO); Prof. Ke Yao (President of Chinese Ophthalmological Society) ; Prof.William Smiddy (Bascom Palmer Eye instituteUSA) ; Prof.Joel Schuman (President of Association of University Professors of Ophthalmology,USA); Prof.Yizhi Liu (Vice President of Chinese Ophtlalmology Society); Prof.Yu-Sheng Wang (Director of Eye Institute of Chinese PLA); Prof.Ling-Yun Cheng (Director of Ocular Pharmacology, Shiley Eye Center, USA). IJO accepts contributions in English from all over the world. It includes mainly original articles and review articles, both basic and clinical papers. Instruction is Welcome Contribution is Welcome Citation is Welcome Cooperation organization International Council of Ophthalmology(ICO), PubMed, PMC, American Academy of Ophthalmology, Asia-Pacific, Thomson Reuters, The Charlesworth Group, Crossref,Scopus,Publons, DOAJ etc.