Repeatability and Reproducibility of Anterior Segment Measurements in Normal Eyes Using Dual Scheimpflug Analyzer

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dc.contributor.authorAltiparmak, Zeynep
dc.contributor.authorYagci, Ramazan
dc.contributor.authorGuler, Emre
dc.contributor.authorArslanyilmaz, Zeynel
dc.contributor.authorCanbal, Metin
dc.contributor.authorHepsen, Ibrahim F.
dc.date.accessioned2025-10-24T18:09:59Z
dc.date.available2025-10-24T18:09:59Z
dc.date.issued2015
dc.departmentMalatya Turgut Özal Üniversitesi
dc.description.abstractObjectives: To assess the repeatability and reproducibility of anterior segment measurements including aberrometric measurements provided by a dual Scheimpflug analyzer (Galilei) system in normal eyes. Materials and Methods: Three repeated consecutive measurements were taken by two independent examiners. The following were evaluated: total corneal power and posterior corneal power, corneal higher-order wavefront aberrations (6.0 mm pupil), pachymetry at the central, paracentral, and peripheral zones, and anterior chamber depth (ACD). Repeatability was assessed by calculating the within subject standard deviation, precision, repeatability, and intraclass correlation coefficient (ICC). Bland-Altman analysis was used for assessing reproducibility. Results: Thirty eyes of 30 patients were included. The best ICC values were for corneal pachymetry and ACD. For both observers, acceptable ICC was also achieved for the other parameters, the only exceptions being posterior corneal astigmatism and total high order aberration. The 95% LoA (Limits of Agreement) values for all measurements showed small variability between the two examiners. Conclusion: The Galilei system provided reliable measurements of anterior segment parameters. Therefore, the instrument can be confidently used for routine clinical use and research purposes.
dc.identifier.doi10.4274/tjo.16768
dc.identifier.endpage248
dc.identifier.issn1300-0659
dc.identifier.issn2147-2661
dc.identifier.issue6
dc.identifier.pmid27800242
dc.identifier.scopus2-s2.0-84948734830
dc.identifier.scopusqualityN/A
dc.identifier.startpage243
dc.identifier.urihttps://doi.org/10.4274/tjo.16768
dc.identifier.urihttps://hdl.handle.net/20.500.12899/3924
dc.identifier.volume45
dc.identifier.wosWOS:000219246900005
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherTurkish Ophthalmological Soc
dc.relation.ispartofTurk Oftalmoloji Dergisi-Turkish Journal Of Ophthalmology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20251023
dc.subjectGalilei; intraobserver; interobserver repeatability; wavefront aberrations
dc.titleRepeatability and Reproducibility of Anterior Segment Measurements in Normal Eyes Using Dual Scheimpflug Analyzer
dc.typeArticle

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