Paquimetría Orbscan: Diferencias entre observadores al realizar mediciones del espesor corneal
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چکیده
منابع مشابه
Intra-observer and inter-observer variability of color-matching experimental data Variabilidad intra e inter-observadores en las igualaciones de color
Presentamos un análisis de la variabilidad intrae inter-observadores al evaluar pequeñas diferencias de color a partir del trabajo realizado por Wyszeky y Fielder. Usando técnicas de la teoría estadística, evaluamos el tamaño y la forma de los umbrales de discriminación cromática en el espacio (x, y, Y). En el caso de la variabilidad intra-observador mostramos que un número reducido de igualaci...
متن کاملCentral Corneal Thickness Measurement by Ultrasound versus Orbscan II
PURPOSE To compare Orbscan II and ultrasonic pachymetry for measurement of central corneal thickness (CCT) in eyes scheduled for keratorefractive surgery. METHODS CCT was measured using Orbscan II (Bausch & Lomb, USA) and then by ultrasonic pachymetry (Tomey SP-3000, Tomey Ltd, Japan) in 100 eyes of 100 patients with no history of ocular surgery scheduled for excimer laser refractive surgery....
متن کاملCuantificación del Error en las Mediciones Debido a la Frecuencia de Muestreo
The sampling frequency is essential by their influence in the measurement's accuracy. Their effect is decisive when it is necessary to obtain the signal pick val ues. The methods to improve the quality of the acquired data arc related with system operation in real time or if it is admitted to carry out samples taking and later on the data analysis. This paper presents the mathematical expressio...
متن کاملComparison of Central Corneal Thickness Measured through Pentacam, OCTCasia2, and Orbscan IIz in Normal Individuals
Purpose: To compare the central corneal thickness measured through Pentacam, OCTCasia2, and Orbscan IIz in normal individuals. Methods: In this cross sectional comparative study, the researcher investigated the eyes of 70 normal candidates (140 eyes) with the mean age of 31.42 ± 7.70, referring to Dr. Sedaghat eye clinic for refractive surgery. For each person, Central Corneal Thickness (CCT) w...
متن کاملEvaluation of corneal thickness and topography in normal eyes using the Orbscan corneal topography system.
AIMS To map the thickness, elevation (anterior and posterior corneal surface), and axial curvature of the cornea in normal eyes with the Orbscan corneal topography system. METHODS 94 eyes of 51 normal subjects were investigated using the Orbscan corneal topography system. The anterior and posterior corneal elevation maps were classified into regular ridge, irregular ridge, incomplete ridge, i...
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ژورنال
عنوان ژورنال: Archivos de la Sociedad Española de Oftalmología
سال: 2005
ISSN: 0365-6691
DOI: 10.4321/s0365-66912005000500005