Disorders, Refractive Clinical Trial
Corneal topography allows the measure of the radii of curvature and of the thickness of the
cornea. It is essential for diagnosis in ophthalmology and allows to highlight corneal
irregularities such as a keratoconus, or too thin corneas which are a contra-indication for
laser refractive surgery.
Several types of corneal topographers are commercially available. Some as the Orbscan(r),
operate by analyzing the image of the patterns of a Placido disk associated with a light
slit, allowing the collection of thousands of points of the anterior and posterior surface
of the cornea. More recent systems such as the Pentacam(r) are based on automatic rotary
cameras which capture images of the whole anterior segment of the eye. The aim of this study
is to compare two topographs, the Pentacam(r) and the Orbscan(r) and, more specifically, the
central corneal pachymetry measurements measured pre- and postoperatively.
n/a
Status | Clinical Trial | Phase | |
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Completed |
NCT02519673 -
Comparison of Corneal Stromal Tissue Consumption (LATAC)
|
N/A |