منابع مشابه
Longitudinal study of keratoconus progression.
To determine if differences in topographic progression between unaffected keratoconus relatives and normal controls can predict factors associated with the development of keratoconus in a longitudinal study. We recruited 369 unaffected keratoconus relatives and 119 normal controls in Los Angeles. Both eyes of subjects were examined at baseline clinically and by quantitative videokeratography an...
متن کاملAssessing progression of keratoconus: novel tomographic determinants
Several methods have been described in the literature to both evaluate and document progression in keratoconus, but there is no consistent or clear definition of ectasia progression. The authors describe how modern corneal tomography, including both anterior and posterior elevation and pachymetric data can be used to screen for ectatic progression, and how software programs such as the Enhanced...
متن کاملPredicting the Keratoconus Disease Severity Based on Pachymetric Progression Indices Measured by Pentacam
Background Keratoconus (KCN) is a bilateral, progressive, and non-inflammatory disorder in the cornea, which results in thinning and protrusion of the cornea. Objective This study aims to determine the effectiveness of using pachymetric progression indices (PPIs) in grading the severity of KCN disease. Methods In this study, 76 patients with different stages of KCN were enrolled. The severit...
متن کاملTopographic Progression of Keratoconus in the Korean Population
PURPOSE To develop a criterion for determining the topographic progression of keratoconus and to analyze the prognostic factors of progression. METHODS Medical records of 211 eyes of 128 patients who had been followed up for more than 2 years on three or more occasions were retrospectively reviewed. Topographic parameters, including simulated K, corneal astigmatism, irregular astigmatism at 3...
متن کاملProgression of keratoconus assessed by fourier analysis of videokeratography data.
OBJECTIVE To quantitatively document changes in corneal refractive parameters in relation to the progression of keratoconus over years. DESIGN Retrospective observational case series. PARTICIPANTS Eighty-five eyes of 64 patients with keratoconus who had undergone videokeratography examinations at least twice with an interval of 1 year or longer between each examination. METHODS By means o...
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ژورنال
عنوان ژورنال: Ophthalmology
سال: 2019
ISSN: 0161-6420
DOI: 10.1016/j.ophtha.2019.02.029