Corneal Elevation Topography in Primary Open Angle Glaucoma

PURPOSE OF THE STUDY:The purpose of the study was to describe and compare anterior and posterior topographic elevation maps in primary open angle glaucoma patients with functional damage staging and in healthy controls. METHODS:A total of 217 subjects were consecutively recruited, including 111 primary open angle glaucoma patients (patients), and 106 healthy individuals (controls). All patients performed Pentacam HR corneal topography. Mean anterior keratometry and anterior and posterior topographic elevation maps were compared in the central 3, 5, and 7 mm. Humphrey automated perimetry results from the patient group were classified according to the Glaucoma Staging System. RESULTS:Age (patients72.32±8.09; controls70.82±8.36; P=0.18) and central corneal pachymetry (patients541.13±36.98; controls548.67±34.56; P=0.12) were similar in both groups. Maximum elevation readings in the central 5 mm were significantly (P