ABSTRACT The intraocular pressure of clinical patients seen at The Ohio State University College of Optometry Glaucoma Clinic was assessed using the American Optical Non‐Contact Tonometer and the Mackay‐Marg Electronic Tonometer. The intraocular pressure measured by the NCT, in general, was lower than indicated using the electronic tonometer on each eye respectively.
Augsburgert et al. (Mon,) studied this question.