Results 141 to 150 of about 10,825 (176)
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Corneal Topography and the Hirschberg Test.
Ophthalmic and Visual Optics, 1991An alternative approach to the problem of reconstucting the topography of the cornea by measurement of images formed by the corneal reflecting surface may be had by considering the effect of aspherical corneal topography on the "Hirschberg Test," a traditional clinical maneuver for the estimation of ocular misalignment.
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Computerized corneal topography of furrow corneal degeneration
Journal of Cataract and Refractive Surgery, 1997To analyze the corneal topography features of furrow corneal degeneration.Western Galilee-Nahariya Medical Center, Nahariya, Israel.Computer-assisted corneal topography analysis of two patients with furrow corneal degeneration was obtained and studied.The typical appearance of circumferential peripheral thinning in the lucid interval between the limbus
S, Rumelt, U, Rehany
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Measurement of corneal topography in keratoconus
Ophthalmic and Physiological Optics, 1993A new method is described for calculating the topography and curvature of an irregularly shaped cornea, Vertical planes of light are projected onto the cornea and points in x, y, z space are calculated from the light images on the corneal surface.
D A, de Cunha, E G, Woodward
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Methods of Analysis of Corneal Topography
Journal of Refractive Surgery, 1989ABSTRACT: The visual inspection of photokeratoscope mires permits the diagnosis of advanced anomalies in corneal shape and is an extremely useful adjunct to keratometry and slit-lamp microscope examination. However, corneal distortions too small to be appreciated by visual inspection of keratographs can seriously degrade visual acuity. In this article,
S D, Klyce, S E, Wilson
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Corneal Topography and Irregular Astigmatism
Optometry and Vision Science, 1995ABSTRACT Background. The term irregular astigmatism has been used to refer to a variety of types of optical irregularity, although there are no widely recognized quantitative definitions of irregular astigmatism. This paper proposes a particular approach to defining and quantifying irregular astigmatism, and relates this model to blur
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Visualization in corneal topography
Proceedings Visualization '98 (Cat. No.98CB36276), 1998Vos, F.M., Spoelder, H.J.W.
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Corneal Topography for Intraocular Lens Selection in Refractive Cataract Surgery
Ophthalmology, 2021Naoyuki Maeda, So GotÅ
exaly