Algorithms / Tomography / Humans / Lasers / Female / Male / Intraocular Pressure / American / Clinical Sciences / Middle Aged / Optometry and Ophthalmology / Public health systems and services research / Vision Disorders / Reproducibility of Results / Optic Disk / European Continental Ancestry Group / Visual Fields / Diagnostic Accuracy / Heidelberg Retina Tomograph / Sensitivity and Specificity / Cross Sectional Studies / Ophthalmoscopy / Male / Intraocular Pressure / American / Clinical Sciences / Middle Aged / Optometry and Ophthalmology / Public health systems and services research / Vision Disorders / Reproducibility of Results / Optic Disk / European Continental Ancestry Group / Visual Fields / Diagnostic Accuracy / Heidelberg Retina Tomograph / Sensitivity and Specificity / Cross Sectional Studies / Ophthalmoscopy