الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Primary open angle glaucoma is a progressive optic neuropathy and, perhaps, the most common form of glaucoma. It is the second leading cause of induced vision loss worldwide after cataracts. The relationship between the cornea and POAG has been extensively reviewed, mainly related to central corneal thickness (CCT). Corneal topography in POAG is a recent perspective on this topic. Recent studies showed that patients with POAG have a significant forward shifting of the posterior and anterior corneal surface compared with healthy controls. A new technology of including the rotating Scheimpflug camera in the Placido disk in the TMS 5 (Topographic Modeling System, version 5) can enable the calculation of up to 7,300 points obtained by the Placido disk and up to 40,960 points obtained by the Scheimpflug. It uses rotating Scheimpflug imaging technique to capture a 3D image from the anterior segment of the eye. During its measurements, extraneous eye movements are detected by a second pupil camera and corrected simultaneously. Scheimpflug principle refers to a concept in geometric optics whereby a photograph of an object plane that is not parallel to the image plane can be rendered maximally focused given certain angular relations among the object plane, the lens, and the image plane. This study aimed at evaluating corneal scheimpflug topographic elevation maps in patients with primary open angle glaucoma and correlating the results with the stage of glaucomatous damage graded according to perimetric changes.