title: The pneumatonograph and Perkins' tonometer. A clinical study of the reproducibility in glaucomatous eyes.
abstract: Reproducibility by means of replicated single pressure readings of 82 eyes of 46 glaucoma patients in the supine position were compared. The standard deviation was 7% for the pneumatonograph compared to 13% for the Perkins hand held applanation tonometer. The difference of the reproducibility is highly significant.
mesh_terms: D000368:Aged; D005069:Evaluation Studies as Topic; D005260:Female; D005901:Glaucoma / Q000175:diagnosis*; D006801:Humans; D007429:Intraocular Pressure; D008297:Male; D008875:Middle Aged; D011187:Posture; D014065:Tonometry, Ocular / Q000295:instrumentation*