Posterior corneal elevation and back difference corneal elevation in diagnosing forme fruste keratoconus in the fellow eyes of unilateral keratoconus patients

dc.contributor.authorMüftüoğlu, Orkun
dc.contributor.authorAyar, Orhan
dc.contributor.authorÖzülken, Kemal
dc.contributor.authorÖzyol, Erhan
dc.contributor.authorAkıncı, Arsen
dc.date.accessioned10.07.201910:49:13
dc.date.accessioned2019-07-10T19:57:34Z
dc.date.available10.07.201910:49:13
dc.date.available2019-07-10T19:57:34Z
dc.date.issued2013
dc.departmentİstanbul Medipol Üniversitesi, Tıp Fakültesi, Cerrahi Tıp Bilimleri Bölümü, Göz Hastalıkları Ana Bilim Dalı
dc.descriptionWOS: 000324014300010
dc.descriptionPubMed ID: 23820305
dc.description.abstractTo evaluate posterior corneal elevation and back difference corneal elevation in patients with keratoconus in 1 eye and forme fruste keratoconus in the fellow eye. SETTING: Kudret Eye Hospital, Ankara, Turkey. DESIGN: Case-control study. METHODS: This study retrospectively reviewed patients with keratoconus in 1 eye and forme fruste keratoconus in the fellow eye and eyes of normal subjects. All subjects were evaluated with a rotating Scheimpflug imaging system (Pentacam), including sagittal and tangential anterior curve analysis, keratometry, and posterior elevation. The back difference elevation values were extrapolated from the difference maps of the Belin-Ambrosio enhanced ectasia display of the Scheimpflug system. The receiver operating characteristic (ROC) curves were analyzed to evaluate the sensitivity and specificity of the parameters. RESULTS: The corneal power, pachymetric progression index, and posterior corneal elevation (posterior elevation and back difference elevation) measurements were statistically significantly higher in eyes with keratoconus or forme fruste keratoconus than in eyes of normal control subjects (P<.05). Using ROC analysis, the area under the curve values of mean keratometry, steepest point on the tangential curve, minimum corneal thickness, pachymetric progression index, Ambrosio's relational thickness, posterior elevation, and back difference elevation to distinguish forme fruste keratoconus from control subjects were 0.51, 0.84, 0.65, 0.81, 0.72, 0.68, and 0.76, respectively. CONCLUSIONS: Back difference elevation was better than posterior elevation in diagnosing forme fruste keratoconus. However, as sole parameters, both had limited sensitivity and specificity to differentiate between forme fruste keratoconus eyes and normal control eyes.
dc.identifier.citationMüftüoğlu, O., Ayar, O., Özülken, K., Özyol, E. ve Akıncı, A. (2013). Posterior corneal elevation and back difference corneal elevation in diagnosing forme fruste keratoconus in the fellow eyes of unilateral keratoconus patients. Journal Of Cataract And Refractive Surgery, 39(9), 1348-1357. https://dx.doi.org/10.1016/j.jcrs.2013.03.023
dc.identifier.doi10.1016/j.jcrs.2013.03.023
dc.identifier.endpage1357
dc.identifier.issn0886-3350
dc.identifier.issue9
dc.identifier.scopusqualityQ1
dc.identifier.startpage1348
dc.identifier.urihttps://dx.doi.org/10.1016/j.jcrs.2013.03.023
dc.identifier.urihttps://hdl.handle.net/20.500.12511/3005
dc.identifier.volume39
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherElsevier Science Inc
dc.relation.ispartofJournal Of Cataract And Refractive Surgeryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectPosterior Corneal
dc.subjectElevation and Back
dc.subjectDifference Corneal
dc.subjectKeratoconus
dc.titlePosterior corneal elevation and back difference corneal elevation in diagnosing forme fruste keratoconus in the fellow eyes of unilateral keratoconus patients
dc.typeArticle

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