Surgically Induced Corneal Astigmatism Following Intravitreal Ranibizumab Injection

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dc.contributor.authorKocaturk, Tolga
dc.contributor.authorErkan, Erol
dc.contributor.authorEgrilmez, Sait
dc.contributor.authorCakmak, Harun
dc.contributor.authorDundar, Sema O.
dc.contributor.authorDayanir, Volkan
dc.date.accessioned2019-10-27T22:12:17Z
dc.date.available2019-10-27T22:12:17Z
dc.date.issued2015
dc.departmentEge Üniversitesien_US
dc.description.abstractPurpose: To evaluate surgically induced astigmatism (SIA) after an intravitreal ranibizumab (IVR) injection. Methods: Fifty eight eyes of 58 patients who underwent IVR injection due to age-related macular degeneration (wet form) or macular edema were included in this study. Patients' pre-and postoperative detailed ophthalmologic examinations were done and topographic keratometric values (K1, K2) were noted. Pre- and postoperative measurements were compared. Results: The mean preoperative astigmatism of 0.87 Diopters (D) was found to be 0.95 D, 0.75 D, 0.82 D and 0.78 D on the 1st day, 3rd day, 1st week and 1st month, respectively. After injection, absolute change in astigmatism was found to be 0.08 D, 0.12 D, 0.05 D and 0.09 D on the 1st day, 3rd day, 1st week and 1st month, respectively. The absolute change in astigmatism seemed to be insignificant in terms of refractive analysis, however; when we performed a vectorial analysis, which takes into account changes in the axis of astigmatism, the mean value of induced astigmatism were found to be 0.33 +/- 0.22 D, 0.32 +/- 0.29 D, 0.41 +/- 0.37 D, 0.46 +/- 0.32 D on the 1st day, 3rd day, 1st week and on 1st month, respectively. Conclusion: Intravitreal injection is a minimally invasive ophthalmologic procedure, however; it may still cause statistically significant induced astigmatism when evaluated from a vectorial point of view.en_US
dc.identifier.doi10.2174/1874364101509010121en_US
dc.identifier.endpage125en_US
dc.identifier.issn1874-3641
dc.identifier.pmid26401170en_US
dc.identifier.startpage121en_US
dc.identifier.urihttps://doi.org/10.2174/1874364101509010121
dc.identifier.urihttps://hdl.handle.net/11454/49339
dc.identifier.volume9en_US
dc.identifier.wosWOS:000424584400014en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherBentham Science Publ Ltden_US
dc.relation.ispartofOpen Ophthalmology Journalen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectIntraocular pressureen_US
dc.subjectintravitreal injectionen_US
dc.subjectranibizumaben_US
dc.subjectsurgically induced astigmatismen_US
dc.subjectvectorial analysisen_US
dc.titleSurgically Induced Corneal Astigmatism Following Intravitreal Ranibizumab Injectionen_US
dc.typeArticleen_US

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