Comparing Corneal Topography from the Oculus Pentacam ... | 合法醫療器材資訊網

由JTSchwiegerling著作·2006—Purpose::TocomparetherepeatabilityandcorrelationbetweenmeasurementsoftheanteriorcornealsurfacecapturedwiththeOculusPentacamScheimpflug ...

Abstract

Purpose: : To compare the repeatability and correlation betweenmeasurements of the anterior corneal surface captured with theOculus Pentacam Scheimpflug imager and the Humphrey Atlas cornealtopographer

Methods: : Four consecutive measurements of 14 subjects were capturedwith both devices. Elevation data was exported and analyzedto extract the radii of curvature of the anterior cornea alongthe principal meridia. Repeatability of the devices was assessedby examining the standard deviation of the repeated measures.Correlation of the radii of curvature along the principal meridiabetween the two devices was also explored.

Results: : Both devices are highly repeatable, with an averagestandard deviation in the radii of curvature measurement of41 microns for the Pentacam and 48 microns for the Atlas. Theradii measurements are highly correlated between the deviceswith R2 =...