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corneal topography

Keratoconus: Corneal topography

Diagnosis of keratoconus: Topography corneal keratoconus Results with time myopia, pronounced astigmatism often oblique or inverse, and a decrease in visual acuity not completely correctable by glasses glasses. It mainly affects patients under 40 years of age, as it appears a few years after the installation of eye rubbing repeated. [...]

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Repeatability of measurements obtained with keratometry 3 topographers in keratoconic and normal corneas. Guilbert E, Saad A, Elluard M, A gray-Dulac, Angolan H, Gatinel D. Journal of Refractive Surgery, April 2016.

Repeatability of measurements obtained with keratometry 3 topographers in keratoconic and normal corneas. Emmanuel Guilbert, MD; Alain Saad, MD; Maud Elluard, MD; Alice grey-Dulac, MD; Helen Angolan, OD; Damien Gatinel, MD From the Department of Anterior and Refractive Surgery Dept, Rothschild Foundation, Paris, France Summary of this paper: The main finding of this study is that repeatability [...]

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Validation of year objective scoring system for shape fruste keratoconus detection and post-LASIK ectasia risk assessment in Asian Eyes. Chan C, M, Saad Ang A, D, Mejia Chua M, Lim L, Gatinel D. Cornea, 2015

This article is about the result of the evaluation of the SCORE Analyzer (topographer Orbscan) software on Asian eyes for detection of crude forms of Keratoconus (beginner infra clinical Keratoconus). SCORE Analyzer is an artificial intelligence system based on the analysis of the topography of the cornea by an algorithm designed by Drs. Gatinel and [...]

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Indices and screening tests for subclinical keratoconus.

Indices and screening tests are important to detect early keratoconus and corneal topography is certainly the reference examination that should be systematically performed as part of the preoperative assessment prior to refractive surgery. Iatrogenic corneal ectasia is the most dreaded complication after LASIK. Its most prominent risk factor is the presence of year undiagnosed condition [...]

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Guilbert E, Saad A, Gatinel D. AcuTarget Measurements: Repeatability and Comparison to OPD-Scan III. J Refract Surg, 2014; 30 (3): 180-185.

This article looks at the study compared to the Acutarget (today renamed Veryon) and the OPDscan III regarding the measurement of the distance between the center of the pupil and corneal vertex (first Purkinje image). Due to the presence of an angle Kappa, the apparent Center of the entrance pupil is not confused [...]

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SCORE Analyzer

Detection of subclinical Keratoconus and ectasia with software preventing SCORE Analyzer.   The Score software is a computer program in artificial intelligence intended to provide assistance to the clinical decision in refractive surgery for early detection of new forms of Keratoconus infra-clinic and prevention of corneal ectasia. Designed by Dr [...]

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Guilbert E, Saad A, Gatinel D. Unilateral Ectasia After LASIK in a Patient With Abnormal Topography purpose Normal Tomography. J Refract Surg, 2013; 29 (4): 294-296

The induced corneal ectasia is a rare complication of LASIK, whose beginning is often insidious and delayed in time. She realizes a table similar to that of a Keratoconus with recurrence of myopia and astigmatism irregular and scalable. The main risk of this complication factor is the presence of a sub clinical form of [...]

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Cabot F, Gatinel D. Refractive Surgical Problem. Journal of Cataract and Refractive Surgery, January 2013

This article describes a clinical case of refractive surgery, particularly concerning the choice of the operative indication (LASIK, PKR, surgical abstention) at the end of the pre-opeatoire balance that combines visual measures corneal topography (with measurement of the thickness of the cornea) and biomechanical exploration (Ocular Response Analyzer). The result of these investigations is discussed. In the end, [...]

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Corneal asymmetry

The asymmetry of the cornea is a feature seen in corneal topography. It is important to detect and quantify, because it is a marker that is important for early detection of Keratoconus (fruste Keratoconus), especially in its orientation vertical or oblique forms. Definition of asymmetric corneal asymmetry is defined by a difference of [...]

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