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dc.contributor.authorHacıağaoğlu, Sezer
dc.contributor.authorTanrıverdi, Cafer
dc.contributor.authorKeskin, Fatma Feyza Nur
dc.contributor.authorTran, Khoa D.
dc.contributor.authorKılıç, Aylin
dc.date.accessioned2023-09-14T07:02:17Z
dc.date.available2023-09-14T07:02:17Z
dc.date.issued2023en_US
dc.identifier.citationHacıağaoğlu, S., Tanrıverdi, C., Keskin, F. F. N., Tran, K. D. ve Kılıç, A. (2023). Allograft corneal ring segment for keratoconus management: Istanbul nomogram clinical results. European Journal of Ophthalmology, 33(2), 689-696. https://dx.doi.org/10.1177/11206721221142995en_US
dc.identifier.issn1120-6721
dc.identifier.issn1724-6016
dc.identifier.urihttps://dx.doi.org/10.1177/11206721221142995
dc.identifier.urihttps://hdl.handle.net/20.500.12511/11426
dc.description.abstractPurpose To evaluate the clinical feasibility and visual outcomes of allograft corneal ring segment implantation for the treatment of keratoconus. Methods This case series, included forty-four eyes of 32 patients with a 6-month follow-up. All cases were treated according to the Istanbul nomogram. In the Istanbul Nomogram, corneal tunnels of 4 x 7.5 mm diameters are created at depth of 200 mu m and implanted with sterile allograft corneal rings (KeraNaturalTM, Lions VisionGift, Portland, OR, USA) at the cone location. Uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), spherical equivalent (SE) and keratometric values were compared preoperatively versus postoperatively. Results There was significant improvement in UDVA, CDVA, SE and topographic keratometric values. The mean preoperative CDVA (Snellen, decimal) increased from 0.29 +/- 0.20, to 0.56 +/- 0.26 (P < 0.001), at the last visit. There was no statistically significant difference between preoperative and postoperative thinnest pachymetry values (P = 0.509). No major complications or adverse event were observed during and after the operation. Conclusions The results of this pilot study show that sterile allograft corneal ring segments may be safe, effective and enhance the visual performance of keratoconus patients. Larger clinical studies are needed to demonstrate the effectiveness and safety with long term follow-up.en_US
dc.language.isoengen_US
dc.publisherSAGE Publications Ltden_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAllograft Corneal Ringen_US
dc.subjectCAIRSen_US
dc.subjectIntracorneal Ring Segmenten_US
dc.subjectKeranaturalen_US
dc.subjectKeratoconusen_US
dc.titleAllograft corneal ring segment for keratoconus management: Istanbul nomogram clinical resultsen_US
dc.typearticleen_US
dc.relation.ispartofEuropean Journal of Ophthalmologyen_US
dc.departmentİstanbul Medipol Üniversitesi, Tıp Fakültesi, Cerrahi Tıp Bilimleri Bölümü, Göz Hastalıkları Ana Bilim Dalıen_US
dc.authorid0000-0003-3634-5433en_US
dc.authorid0000-0003-2445-6339en_US
dc.authorid0000-0002-6327-7440en_US
dc.authorid0000-0001-8880-0026en_US
dc.identifier.volume33en_US
dc.identifier.issue2en_US
dc.identifier.startpage689en_US
dc.identifier.endpage696en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.doi10.1177/11206721221142995en_US
dc.institutionauthorHacıağaoğlu, Sezer
dc.institutionauthorTanrıverdi, Cafer
dc.institutionauthorKeskin, Fatma Feyza Nur
dc.institutionauthorKılıç, Aylin
dc.identifier.wosqualityQ4en_US
dc.identifier.wos000893576700001en_US
dc.identifier.scopus2-s2.0-85144209998en_US
dc.identifier.pmid36464653en_US
dc.identifier.scopusqualityQ2en_US


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