Evaluation of intrastromal corneal ring segments for treatment of keratoconus with a mechanical implantation technique

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dc.authorid0000-0002-6902-4460en_US
dc.contributor.authorTunc, Zeki
dc.contributor.authorHelvacioglu, Firat
dc.contributor.authorSencan, Sadik
dc.date.accessioned2024-07-12T21:47:34Z
dc.date.available2024-07-12T21:47:34Z
dc.date.issued2013en_US
dc.departmentMaltepe Üniversitesien_US
dc.description.abstractPurpose: To evaluate the clinical outcomes of intrastromal corneal ring segment (ICRS) implantation in patients with keratoconus using a mechanical implantation technique. Materials and Methods: Thirty eyes of 17 patients with keratoconus were enrolled. ICRSs (Keraring) were implanted after dissection of the tunnel using Tunc's specially designed dissector under suction. A complete ophthalmic examination was performed, including uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), spherical equivalent, keratometric readings, inferosuperior asymmetry index (ISAI), and ultrasound pachymetry. All 3-, 6-, and 12-month follow-ups were completed, and statistical analysis was performed. Results: The mean preoperative UDVA for all eyes was 1.36 +/- 0.64 logMAR. At 12 months, the mean UDVA was 0.51 +/- 0.28 logMAR (P = 0.001), and the mean preoperative CDVA was 0.57 +/- 0.29 logMAR, which improved to 0.23 +/- 0.18 (P = 0.001) at 1 year. There was a significant reduction in spherical equivalent refractive error from -6.42 +/- 4.69 diopters (D) preoperatively to -1.26 +/- 1.45 D (P = 0.001) at 1 year. In the same period, the mean K-readings improved from 49.38 +/- 3.72 D to 44.43 +/- 3.13 D (P = 0.001), and the mean ISAI improved from 7.92 +/- 3.12 to 4.21 +/- 1.96 (P = 0.003). No significant changes in mean central corneal thickness were observed postoperatively. There were no major complications during and or after surgery. Conclusion: ICRS implantation using a unique mechanical dissection technique is a safe and effective treatment for keratoconus. All parameters improved by the 1-year follow-up.en_US
dc.identifier.doi10.4103/0301-4738.109519
dc.identifier.endpage225en_US
dc.identifier.issn0301-4738
dc.identifier.issn1998-3689
dc.identifier.issue5en_US
dc.identifier.pmid23571258en_US
dc.identifier.scopus2-s2.0-84879652416en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage218en_US
dc.identifier.urihttps://dx.doi.org/10.4103/0301-4738.109519
dc.identifier.urihttps://hdl.handle.net/20.500.12415/8053
dc.identifier.volume61en_US
dc.identifier.wosWOS:000321071200007en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoenen_US
dc.publisherWOLTERS KLUWER MEDKNOW PUBLICATIONSen_US
dc.relation.ispartofINDIAN JOURNAL OF OPHTHALMOLOGYen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmzKY01235
dc.subjectIntrastromal corneal ring segmentsen_US
dc.subjectkeraringen_US
dc.subjectkeratoconusen_US
dc.titleEvaluation of intrastromal corneal ring segments for treatment of keratoconus with a mechanical implantation techniqueen_US
dc.typeArticle
dspace.entity.typePublication

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