1997
DOI: 10.1097/00006324-199711000-00025
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Gaussian Power with Cylinder Vector Field Representation for Corneal Topography Maps

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Cited by 25 publications
(20 citation statements)
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“…the curvature of the curve obtained by the intersection of the optical surface with a plane that contains, for a point at the surface, the tangent along the radial direction and the normal. I note that, within the framework of corneal topography, Barsky called this curvature normal instantaneous curvature .…”
Section: Normal Meridional and Geodesic Curvaturesmentioning
confidence: 99%
See 3 more Smart Citations
“…the curvature of the curve obtained by the intersection of the optical surface with a plane that contains, for a point at the surface, the tangent along the radial direction and the normal. I note that, within the framework of corneal topography, Barsky called this curvature normal instantaneous curvature .…”
Section: Normal Meridional and Geodesic Curvaturesmentioning
confidence: 99%
“…The meridional curvature is the curvature of the curve obtaining by intersecting the optical surface with a meridional plane. Again, within the context of corneal topography, Barsky called this curvature meridional instantaneous curvature . The meridional planar curve is obtained using the radial coordinate as the curve parameter: r = t (being θ fixed).…”
Section: Normal Meridional and Geodesic Curvaturesmentioning
confidence: 99%
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“…This is the only one of our four metrics that is not a function of the central axis or of the PFP; rather, it is purely a measure of the surface's refracting power. The advantage of this definition over other traditional representations such as mean sphere 13 , Gaussian power 14,15 , axial power, and instantaneous power is that this metric illustrates spherical aberration. Those other metrics would be constant for a sphere, whereas instantaneous refractive power increases away from the center.…”
Section: Instantaneous Refractive Powermentioning
confidence: 99%