Reprodutibilidade da medida da espessura central da córnea com o sistema Pentacam HR

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.Hosp Santa Casa Misericordia Rio de Janeiro RJ, Rio De Janeiro, BrazilUniv Fed Sao Paulo UNIFESP, Dept Oftalmol, Sao Paulo, BrazilHosp Univ Antonio Pedro, Niteroi, RJ, BrazilInst Olhos Renato Ambrosio, Rio De Janeiro, RJ, BrazilUniv Fed Fluminense, Rio De Janeiro, RJ, BrazilUniv Fed Sao Paulo UNIFESP, Dept Oftalmol, Sao Paulo, BrazilWeb of Scienc