Assuntos
Queimaduras Químicas/terapia , Doenças da Córnea/terapia , Fibrina/farmacologia , Lasers de Excimer , Limbo da Córnea/citologia , Ceratectomia Fotorrefrativa/métodos , Transplante de Células-Tronco/métodos , Idoso , Álcalis , Queimaduras Químicas/cirurgia , Células Cultivadas , Terapia Combinada , Doenças da Córnea/cirurgia , Topografia da Córnea , Queimaduras Oculares/induzido quimicamente , Humanos , Masculino , Células-Tronco/citologia , Células-Tronco/efeitos dos fármacos , Transplante AutólogoRESUMO
PURPOSE: To assess reproducibility of central corneal thickness (CCT) measurement by means of ultrasonic pachymetry. METHODS: Fifty one volunteers underwent three sessions of CCT measurements, each consisting of three CCT measurements, performed by each of three different observers. Intra- and interobserver reproducibility was calculated by means of intraclass correlation coefficient (ICC). The expected range of variability between two independent evaluations was calculated using scatter plots of each test-retest difference against their mean. The standard deviation of the mean differences in the test-retest scores was used to describe the differences in the score spread. RESULTS: The ICC ranges of the intra- and interobserver evaluations were 0.95-0.97 and 0.89-0.95 respectively; the expected variability was < or = +/-1% and < or = +/- 2% respectively (95% confidence interval). CONCLUSIONS: The measurement of CCT by means of ultrasonic pachymetry is highly reproducible.
