title: [ProTon--a new portable tonometer. Initial experimental and clinical results].
abstract: To determine the accuracy of a new portable tonometer using the Mackay Marg principle (ProTon, Tomey) we measured three cadaver eyes in vitro and 196 eyes of 98 patients in vivo. The 325 manometric determined IOP values were compared to ProTon measurements in three enucleated, canulated human eyes. The correlation was r = 0.99. In a clinical study 196 eyes were measured with both the Goldmann and the ProTon tonometer. The results showed good correspondence with a correlation of r = 0.95. The statistical significance (paired t-test) was P < 0.001.
authors.affiliation: Universitäts-Augenklinik Regensburg.
authors.forename: H
authors.initials: H
authors.lastname: Sachs
authors.forename: C P
authors.initials: CP
authors.lastname: Lohmann
authors.forename: M
authors.initials: M
authors.lastname: Scherbauer
authors.forename: V P
authors.initials: VP
authors.lastname: Gabel
mesh_terms: D004867:Equipment Design; D005901:Glaucoma / Q000175:diagnosis* / Q000503:physiopathology; D006801:Humans; D007429:Intraocular Pressure / Q000502:physiology; D012016:Reference Values; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D014065:Tonometry, Ocular / Q000295:instrumentation*