Performs basic diagnostic tests and visual screenings, such as: visual field/acuity, tonometry / glaucoma pressures / applanations, topography, color vision testing, lensometry, blood pressure, pupil testing, scribing and measurement of the cornea using a keratometer. Headquartered in Charlotte, North Carolina, Advocate Health services nearly 6 million patients and is engaged in hundreds of clinical trials and research studies, with Wake Forest University School of Medicine serving as the academic core of the enterprise.