A Comparison Of The Reichert PT-100 Hand Held, Non-Contact Tonometer To Goldmann And Tono-Pen Tonometers.

The purpose of this study was to determine the accuracy, and ease of use of the new Reichert PT-100 hand held, non-contact tonometer in measuring intraocular pressure (IOP). The accuracy was determined by comparing the results of the hand held tonometer to the "gold standard", Goldmann tonometer and then to the current hand held standard, the Tono-Pen. The ease of use was assessed by subjective evaluations from the two individual 4th year optometric interns involved in this study. Data was collected from 75 subjects (non-clinical population) using these three tonometers: the Reichert PT-100 hand held, non-contact tonometer, Goldmann tonometry, and the Mentor Tono-Pen XL.