Use of Preexisting ICRS Tunnels for Implantation of CAIRS Following ICRS Migration and Corneal Tissue Necrosis: A Case Report.

IF 3 3区医学 Q1 OPHTHALMOLOGY

Journal of refractive surgery Pub Date : 2025-09-01 DOI:10.3928/1081597X-20250630-01

Omar M Alabbasi, Mubarak W Alahmadi, Razan A Alhejaili, Abeer K Alharbi

{"title":"Use of Preexisting ICRS Tunnels for Implantation of CAIRS Following ICRS Migration and Corneal Tissue Necrosis: A Case Report.","authors":"Omar M Alabbasi, Mubarak W Alahmadi, Razan A Alhejaili, Abeer K Alharbi","doi":"10.3928/1081597X-20250630-01","DOIUrl":null,"url":null,"abstract":"Purpose: To present a case of synthetic intrastromal corneal ring segment (ICRS) intrusion secondary to necrosis and migration, managed by implantation of corneal allogenic intrastromal ring segments (CAIRS) within the preexisting tunnel.Methods: A 24-year-old man with known keratoconus underwent bilateral ICRS implantation. He presented with blurred vision in the right eye 6 weeks after the procedure. The patient developed segment intrusion secondary to migration and necrosis. The synthetic ring was subsequently explanted, and a CAIRS was inserted into the same corneal tunnel.Results: Postoperative assessment showed significant visual improvement. The patient's spectacle corrected distance visual acuity (CDVA) improved from 20/60 to 20/25, his astigmatism reduced from -6.50 to -4.00 diopters (D), and his keratometry readings decreased from 49.00 to 45.00 D. The CAIRS remained stable, fully filling the stromal defect and covering the area of intrusion, with no signs of necrosis or migration at the 6-month follow-up visit.Conclusions: CAIRS are a safe and effective alternative for addressing complications arising from synthetic ICRS in patients with keratoconus, offering improved visual and topographic outcomes while minimizing risks. Furthermore, it is possible to implant CAIRS within an existing tunnel.","PeriodicalId":16951,"journal":{"name":"Journal of refractive surgery","volume":"41 9","pages":"e1022-e1026"},"PeriodicalIF":3.0000,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of refractive surgery","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.3928/1081597X-20250630-01","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"OPHTHALMOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

Purpose: To present a case of synthetic intrastromal corneal ring segment (ICRS) intrusion secondary to necrosis and migration, managed by implantation of corneal allogenic intrastromal ring segments (CAIRS) within the preexisting tunnel.

Methods: A 24-year-old man with known keratoconus underwent bilateral ICRS implantation. He presented with blurred vision in the right eye 6 weeks after the procedure. The patient developed segment intrusion secondary to migration and necrosis. The synthetic ring was subsequently explanted, and a CAIRS was inserted into the same corneal tunnel.

Results: Postoperative assessment showed significant visual improvement. The patient's spectacle corrected distance visual acuity (CDVA) improved from 20/60 to 20/25, his astigmatism reduced from -6.50 to -4.00 diopters (D), and his keratometry readings decreased from 49.00 to 45.00 D. The CAIRS remained stable, fully filling the stromal defect and covering the area of intrusion, with no signs of necrosis or migration at the 6-month follow-up visit.

Conclusions: CAIRS are a safe and effective alternative for addressing complications arising from synthetic ICRS in patients with keratoconus, offering improved visual and topographic outcomes while minimizing risks. Furthermore, it is possible to implant CAIRS within an existing tunnel.

查看原文本刊更多论文

使用已有的ICRS隧道在ICRS迁移和角膜组织坏死后植入椅子：1例报告。

目的：介绍一例人工角膜间环段（ICRS）侵入继发于坏死和迁移，通过在原有隧道内植入角膜异体间环段（CAIRS）来治疗。方法：24岁男性，已知圆锥角膜，行双侧ICRS植入术。术后6周右眼视力模糊。患者出现继发于移位和坏死的节段侵入。随后，人造环被移出，一个cair被插入同一个角膜隧道。结果：术后视力明显改善。患者的眼镜矫正距离视力（CDVA）由20/60改善至20/25，散光由-6.50屈光度(D)降至-4.00屈光度(D)，角膜屈光度由49.00降至45.00 D。随访6个月，CAIRS保持稳定，完全填补间质缺损，覆盖侵入区，无坏死、移位迹象。结论：cair是一种安全有效的替代方案，可解决圆锥角膜患者合成ICRS引起的并发症，在降低风险的同时改善视觉和地形结果。此外，还可以在现有的隧道中植入cair。

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

$Journal of refractive surgery$

Journal of refractive surgery 医学-外科

CiteScore

5.10

自引率

12.50%

发文量

160

审稿时长

4-8 weeks

期刊介绍： The Journal of Refractive Surgery, the official journal of the International Society of Refractive Surgery, a partner of the American Academy of Ophthalmology, has been a monthly peer-reviewed forum for original research, review, and evaluation of refractive and lens-based surgical procedures for more than 30 years. Practical, clinically valuable articles provide readers with the most up-to-date information regarding advances in the field of refractive surgery. Begin to explore the Journal and all of its great benefits such as: • Columns including “Translational Science,” “Surgical Techniques,” and “Biomechanics” • Supplemental videos and materials available for many articles • Access to current articles, as well as several years of archived content • Articles posted online just 2 months after acceptance.