{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T15:09:02Z","timestamp":1790176142588,"version":"4.1.0"},"reference-count":26,"publisher":"Public Library of Science (PLoS)","issue":"8","license":[{"start":{"date-parts":[[2024,8,19]],"date-time":"2024-08-19T00:00:00Z","timestamp":1724025600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"The 2024 Kangwon National University Hospital Grant","award":["2024107"],"award-info":[{"award-number":["2024107"]}]}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:sec id=\"sec001\">\n<jats:title>Purpose<\/jats:title>\n<jats:p>We investigated the vertical implantation of a toric implantable collamer lens (ICL) and compared the rotational stability with that of horizontal implantation.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sec002\">\n<jats:title>Methods<\/jats:title>\n<jats:p>This matched comparative study retrospectively reviewed and analyzed data from patients who underwent ICL implantation from 2003\u20132022 by 1:1 matching vertical and horizontal (V and H toric groups, respectively) implantation patients according to preoperative astigmatism, spherical equivalent, sulcus-to-sulcus, anterior chamber depth, and ICL size. Visual acuity, manifest refraction, vaulting, and rotation were measured 3 months postoperatively.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sec003\">\n<jats:title>Results<\/jats:title>\n<jats:p>We included 646 eyes (323 each in the V and H toric groups). No statistically significant difference was observed between groups in postoperative visual acuity, refractive error, and astigmatism. Vaulting was lower in the V toric group. (P &lt; 0.001). The mean lens rotation in the V toric group was less than that in the H toric group (1.11 \u00b1 2.84\u00b0 versus 3.02 \u00b1 10.34\u00b0, P = 0.001). The proportion of eyes in the V and H toric groups showing \u226510\u00b0 of rotation was 2.5% (8 eyes) and 6.5% (21 eyes), respectively (P = 0.014). Despite repositioning from rotation, three (0.9%) and eight (2.5%) eyes required removal owing to lens re-rotation in the V and H toric groups, respectively.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sec004\">\n<jats:title>Conclusion<\/jats:title>\n<jats:p>Toric ICL vertical implantation showed good rotational stability, and appropriate visual acuity correction results with relatively low vaulting. This procedure therefore presents an effective novel method that could replace horizontal toric ICL implantation.<\/jats:p>\n<\/jats:sec>","DOI":"10.1371\/journal.pone.0308830","type":"journal-article","created":{"date-parts":[[2024,8,19]],"date-time":"2024-08-19T17:55:35Z","timestamp":1724090135000},"page":"e0308830","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":10,"title":["Vertical implantable collamer lens as a novel method to increase rotational stability"],"prefix":"10.1371","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1642-0248","authenticated-orcid":true,"given":"Yongwoo","family":"Lee","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sang Beom","family":"Han","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gerd U.","family":"Auffarth","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hyeck-Soo","family":"Son","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6237-7773","authenticated-orcid":true,"given":"Ramin","family":"Khoramnia","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3453-3505","authenticated-orcid":true,"given":"Chul Young","family":"Choi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kun","family":"Moon","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sang Il","family":"An","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Je Myung","family":"Lee","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jong Ho","family":"Lee","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2024,8,19]]},"reference":[{"issue":"3","key":"pone.0308830.ref001","doi-asserted-by":"crossref","first-page":"532","DOI":"10.1016\/j.ajo.2013.11.006","article-title":"Eight-year follow-up of posterior chamber phakic intraocular lens implantation for moderate to high myopia","volume":"157","author":"A Igarashi","year":"2014","journal-title":"Am J Ophthalmol"},{"issue":"8","key":"pone.0308830.ref002","doi-asserted-by":"crossref","first-page":"548","DOI":"10.3928\/1081597X-20150727-05","article-title":"Implantable Collamer Lens for Myopia: Assessment 12 Years After Implantation.","volume":"31","author":"T Moya","year":"2015","journal-title":"J Refract Surg."},{"issue":"10","key":"pone.0308830.ref003","doi-asserted-by":"crossref","first-page":"765","DOI":"10.3928\/1081597X-20110617-01","article-title":"Implantable collamer posterior chamber intraocular lenses: a review of potential complications.","volume":"27","author":"P Fernandes","year":"2011","journal-title":"J Refract Surg"},{"key":"pone.0308830.ref004","doi-asserted-by":"crossref","first-page":"1059","DOI":"10.2147\/OPTH.S111620","article-title":"Meta-analysis and review: effectiveness, safety, and central port design of the intraocular collamer lens","volume":"10","author":"M. Packer","year":"2016","journal-title":"Clin Ophthalmol."},{"issue":"4","key":"pone.0308830.ref005","doi-asserted-by":"crossref","first-page":"293","DOI":"10.4103\/0974-9233.194076","article-title":"Causes of Phakic Implantable Collamer Lens Explantation\/Exchange at King Khaled Eye Specialist Hospital.","volume":"23","author":"NA AlSabaani","year":"2016","journal-title":"Middle East Afr J Ophthalmol."},{"issue":"1","key":"pone.0308830.ref006","doi-asserted-by":"crossref","first-page":"80","DOI":"10.1186\/s12886-021-01847-0","article-title":"Reasons for explantation of phakic intraocular lenses and associated perioperative complications: cross-sectional explant registry analysis.","volume":"21","author":"TM Yildirim","year":"2021","journal-title":"BMC Ophthalmol."},{"issue":"9","key":"pone.0308830.ref007","doi-asserted-by":"crossref","first-page":"1686","DOI":"10.1016\/j.jcrs.2011.03.048","article-title":"Evaluation of ciliary sulcus diameter using ultrasound biomicroscopy in emmetropic eyes and myopic eyes.","volume":"37","author":"J Biermann","year":"2011","journal-title":"J Cataract Refract Surg"},{"issue":"6","key":"pone.0308830.ref008","doi-asserted-by":"crossref","first-page":"2689","DOI":"10.1007\/s10792-017-0757-2","article-title":"Vertical implantable collamer lens (ICL) rotation for the management of high vault due to lens oversizing.","volume":"38","author":"F Matarazzo","year":"2018","journal-title":"Int Ophthalmol"},{"issue":"5","key":"pone.0308830.ref009","doi-asserted-by":"crossref","first-page":"375","DOI":"10.3928\/1081597X-20101005-01","article-title":"New axis-marking method for a toric intraocular lens: mapping method.","volume":"27","author":"D Cha","year":"2011","journal-title":"J Refract Surg"},{"issue":"1","key":"pone.0308830.ref010","doi-asserted-by":"crossref","first-page":"39","DOI":"10.1186\/s40662-021-00262-2","article-title":"Dynamic assessment of variations in pupil diameter using swept-source anterior segment optical coherence tomography after phakic collamer lens implantation.","volume":"8","author":"F Gonzalez-Lopez","year":"2021","journal-title":"Eye Vis (Lond)."},{"issue":"5","key":"pone.0308830.ref011","doi-asserted-by":"crossref","first-page":"1036","DOI":"10.1016\/j.ophtha.2016.01.006","article-title":"Global Prevalence of Myopia and High Myopia and Temporal Trends from 2000 through 2050","volume":"123","author":"BA Holden","year":"2016","journal-title":"Ophthalmology"},{"issue":"6","key":"pone.0308830.ref012","doi-asserted-by":"crossref","first-page":"915","DOI":"10.1016\/j.jcrs.2013.01.036","article-title":"Clinical outcomes after implantation of a posterior chamber collagen copolymer phakic intraocular lens with a central hole for myopic correction.","volume":"39","author":"JF Alfonso","year":"2013","journal-title":"J Cataract Refract Surg"},{"issue":"2","key":"pone.0308830.ref013","doi-asserted-by":"crossref","first-page":"177","DOI":"10.1136\/bjophthalmol-2017-310164","article-title":"Posterior chamber phakic intraocular lens implantation: comparative, multicentre study in 351 eyes with low-to-moderate or high myopia","volume":"102","author":"K Kamiya","year":"2018","journal-title":"Br J Ophthalmol"},{"key":"pone.0308830.ref014","doi-asserted-by":"crossref","first-page":"2427","DOI":"10.2147\/OPTH.S188785","article-title":"The Implantable Collamer Lens with a central port: review of the literature","volume":"12","author":"M. 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