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Title: Repeatability of central corneal thickness measurement with the Pentacam HR system
Other Titles: Reprodutibilidade da medida da espessura central da córnea com o sistema Pentacam HR
Authors: Alonso, Ruiz Simonato
Fontes, Bruno Machado [UNIFESP]
Ventura, Marcelo Palis
Ambrósio, Renato [UNIFESP]
Hosp Santa Casa Misericordia Rio de Janeiro RJ
Universidade Federal de São Paulo (UNIFESP)
Hosp Univ Antonio Pedro
Inst Olhos Renato Ambrosio
Universidade Federal Fluminense (UFF)
Keywords: Cornea/anatomy & histology
Corneal topography
Reproducibility of results
Diagnostic techniques, ophthalmological/instrumentation
Issue Date: 1-Jan-2012
Publisher: Soc Brasileira Oftalmologia
Citation: Revista Brasileira De Oftalmologia. Rio De Janeiro: Soc Brasileira Oftalmologia, v. 71, n. 1, p. 14-17, 2012.
Abstract: Purpose: To assess the repeatability of central corneal thickness measurement at the geometrical center (Central Corneal Thickness - CCT) given by the Pentacam High Resolution (HR) Comprehensive Eye Scanner (Oculus, Wetzlar, Germany) over time. Methods: Prospective, single center, observational study. Two separate CCT measurements were taken by the Pentacam corneal tomography exam (CTm) 3 to 12 months apart, and compared. Results: One hundred and sixteen eyes (n=116) of 62 health patients were included in this study. Average CCT in first and last visits was 541.6 +/- 37 mu m and 543.6 +/- 36.9 mu m respectively. Mean difference between both measurements was 9.2 +/- 6.4 mu m, and there was no statistically significant difference in CCT measurement between visits, with good correlation between them (P = 0.057, r(2) = 0,9209). Conclusion: Pentacam (HR) CTm gives repeatable CCT measurements over time.
ISSN: 0034-7280
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