Sustainability of Orthokeratology as Demonstrated by Corneal Topography
نویسندگان
چکیده
منابع مشابه
Sustainability of Orthokeratology as Demonstrated by Corneal Topography
PURPOSE To determine the sustaining effects of orthokeratology. METHODS This study enrolled 58 eyes with moderate myopia. LK-DM lenses (Lucid Korea Dream Lens) were fitted daily for at least eight hours on an overnight regimen. The effects of orthokeratology and it's sustainability throughout the day were recorded twice; immediately after removal in the morning and eight hours later. Sustaina...
متن کاملCorneal topography by keratometry.
AIMS To investigate the ability of a telecentric keratometer to describe the asphericity and curvature of convex ellipsoidal surfaces and human corneas. METHODS 22 conicoidal convex surfaces and 30 human corneas were examined by conventional keratometry. Additional keratometric measurements were made when the surface was tilted in the horizontal plane relative to the instrument optical axis. ...
متن کاملEmpirical advanced orthokeratology through corneal topography: the University of Houston clinical study.
PURPOSE Traditionally, orthokeratology has used diagnostic lenses to determine the best fit. The purpose of this study was to determine the efficacy of fitting empirically from corneal topography, without the use of diagnostic lenses. METHODS Twenty-nine subjects, 18 to 37 years old, with myopia of 1.00 to 4.00 diopters (D) and astigmatism of no more than 1.50 D, were entered into this 6-mont...
متن کاملInfluence of overnight orthokeratology lens fitting decentration on corneal topography reshaping
Background This retrospective study was designed to investigate the sole influence of orthokeratology (OK) lens fitting decentration on the Zernike coefficients of the reshaped anterior corneal surface. Methods This study comprised a review of 106 right eyes and measurements of corneal topography both before OK and at 1-month follow-up visit. A routine was designed to calculate local corneal ...
متن کاملCentral and Peripheral Changes in Anterior Corneal Topography in Short-Term Orthokeratology
Purpose: This study aimed to investigate the changes in topography of the front corneal surfaces with orthokeratotomy for correcting myopia. Methods: Thirty young wore orthokeratology lenses for correction of myopia spherical equivalent. The values of front corneal surfaces were derived with a corneal topographer (Medmont E300) before and at least 3 months after each treatment. Measurement was ...
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ژورنال
عنوان ژورنال: Korean Journal of Ophthalmology
سال: 2007
ISSN: 1011-8942
DOI: 10.3341/kjo.2007.21.2.74