Comprehensive Eye Examination for Keratoconus

All patients underwent a complete eye examination including the following tests: anamnesis, measurement of uncorrected (UDVA) and corrected (CDVA) distance visual acuity, manifest refraction, slit-lamp biomicroscopy, and corneal analysis by the Sirius system (Costruzione Strumenti Oftalmici, Italy). Repeatability of the topographic measurements provided by the Sirius system in keratoconic eyes are demonstrated in previous studies [17 (link)]. All tests were performed by a single experienced examiner. A minimum of three corneal topographies were successively obtained for each cornea and the best one (the topography with the highest acquisition quality for the Scheimpflug image and keratoscopy) selected to provide data for this study. All corneal topography files were exported in.csv format. Likewise, all cases were classified according to the Amsler-Krumeich grading system [1 (link)].

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Cavas-Martínez F., Bataille L., Fernández-Pacheco D.G., Cañavate F.J, & Alió J.L. (2017). A new approach to keratoconus detection based on corneal morphogeometric analysis. PLoS ONE, 12(9), e0184569.

Publication 2017

Anamnesis Cornea Corneal topography Eyes Patients Refraction Slit lamp biomicroscopy Visual acuity

Corresponding Organization : Universitat de Miguel Hernández d'Elx

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Variable analysis

independent variables

Sirius system (Costruzione Strumenti Oftalmici, Italy)

dependent variables

Anamnesis
Uncorrected distance visual acuity (UDVA)
Corrected distance visual acuity (CDVA)
Manifest refraction
Corneal analysis by the Sirius system

control variables

All tests were performed by a single experienced examiner
A minimum of three corneal topographies were successively obtained for each cornea and the best one (the topography with the highest acquisition quality for the Scheimpflug image and keratoscopy) selected to provide data for this study
All cases were classified according to the Amsler-Krumeich grading system

positive controls

Repeatability of the topographic measurements provided by the Sirius system in keratoconic eyes are demonstrated in previous studies [17 (link)]

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