Intrastromal corneal ring segment implantation in pediatric patients with keratoconus: long-term follow-up

Q4 Medicine

Oftalmologicheskii zhurnal Pub Date : 2023-09-04 DOI:10.31288/oftalmolzh20234913

C. Castro, Nisa Silva, Ana Carolina Abreu, Saul Pires, Miguel Mesquita Neves, Miguel Gomes, Oliveira Luis, P. Menéres

{"title":"Intrastromal corneal ring segment implantation in pediatric patients with keratoconus: long-term follow-up","authors":"C. Castro, Nisa Silva, Ana Carolina Abreu, Saul Pires, Miguel Mesquita Neves, Miguel Gomes, Oliveira Luis, P. Menéres","doi":"10.31288/oftalmolzh20234913","DOIUrl":null,"url":null,"abstract":"Purpose: To evaluate the long-term outcomes of Intrastromal Corneal Ring Segments (ICRS) implantation in pediatric patients with keratoconus. \nMethods: Retrospective analysis of eyes with ICRS implantation in pediatric age. Uncorrected (UCVA) and best-corrected (BCVA) visual acuity, maximum and minimum keratometry (Kmax and Kmin), and corneal thickness at the thinnest point (CTTP) were evaluated preoperatively, 6 to 12 months after surgery, 5 years after surgery, and at the last follow-up visit (>10 years after surgery). \nResults: Fourteen eyes (10 patients) were included. In 5 eyes all ICRS were explanted and in 1 eye, one of the segments was explanted. UCVA (p=0.028) and BCVA (p=0.028) improved 6 to 12 months after surgery and remained stable afterwards (p>0.999). There was a decrease in Kmax and Kmin 6 to 12 months after surgery (p<0.001 and p=0.012, respectively), with subsequent stability at the 5-year follow-up (p=0.736 and p=0.056, respectively). Kmax remained stable at the last follow-up (p>0.999) but there was an increase in Kmin (p=0.028). There were no changes in CTTP (p=0.097).\nConclusion: ICRS implantation seems to be a minimally invasive, and reversible procedure that leads to improvement of BCVA and keratometry readings. Despite this, the need for explantation increased overtime.","PeriodicalId":19419,"journal":{"name":"Oftalmologicheskii zhurnal","volume":" ","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Oftalmologicheskii zhurnal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.31288/oftalmolzh20234913","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Medicine","Score":null,"Total":0}

引用次数: 0

Abstract

Purpose: To evaluate the long-term outcomes of Intrastromal Corneal Ring Segments (ICRS) implantation in pediatric patients with keratoconus. Methods: Retrospective analysis of eyes with ICRS implantation in pediatric age. Uncorrected (UCVA) and best-corrected (BCVA) visual acuity, maximum and minimum keratometry (Kmax and Kmin), and corneal thickness at the thinnest point (CTTP) were evaluated preoperatively, 6 to 12 months after surgery, 5 years after surgery, and at the last follow-up visit (>10 years after surgery). Results: Fourteen eyes (10 patients) were included. In 5 eyes all ICRS were explanted and in 1 eye, one of the segments was explanted. UCVA (p=0.028) and BCVA (p=0.028) improved 6 to 12 months after surgery and remained stable afterwards (p>0.999). There was a decrease in Kmax and Kmin 6 to 12 months after surgery (p<0.001 and p=0.012, respectively), with subsequent stability at the 5-year follow-up (p=0.736 and p=0.056, respectively). Kmax remained stable at the last follow-up (p>0.999) but there was an increase in Kmin (p=0.028). There were no changes in CTTP (p=0.097). Conclusion: ICRS implantation seems to be a minimally invasive, and reversible procedure that leads to improvement of BCVA and keratometry readings. Despite this, the need for explantation increased overtime.

查看原文本刊更多论文

儿童圆锥角膜基质内角膜环段植入术的长期随访

目的：评价儿童圆锥角膜基质内角膜环段（ICRS）植入术的长期疗效。方法：回顾性分析儿童ICRS植入术的疗效。术前、术后6-12个月、术后5年和最后一次随访（术后>10年）评估未矫正（UCVA）和最佳矫正（BCVA）视力、最大和最小角膜曲率（Kmax和Kmin）以及最薄点角膜厚度（CTTP）。结果：共14眼（10例）。在5只眼睛中，所有的ICRS都被移植物，在1只眼睛中一个节段被移植物。UCVA（p=0.028）和BCVA（p=0.028）在术后6至12个月改善，并在术后保持稳定（p>0.05）。术后6到12个月Kmax和Kmin降低（p0.999），但Kmin增加（p=0.028，以及导致BCVA和角膜测量读数改善的可逆程序。尽管如此，移植的需求随着时间的推移而增加。

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

Oftalmologicheskii zhurnal Medicine-Ophthalmology

CiteScore

0.40

自引率

0.00%

发文量

期刊介绍： Journal of Ophthalmology (Ukraine) contains articles on eye diseases diagnosis and treatment, eye care, eye diseases prevention, history of ophthalmology, organization of eye care to population, technical equipment problems. It is committed to publishing original scientific researches and review articles on theory and practice of Ukrainian and foreign ophthalmology, cases, reviews, inventions, historical and medical reviews. It contains peer-reviews of books on ophthalmology, articles on activity of ophthalmologic societies, congresses and conferences chronicles. Journal is designed to ophthalmologists and scientific researchers in the field of vision physiology and eye diseases clinic.