Error measurement for a portable tonometer

Peter Marchetto, Tara Alvarez, Richard Greene, Gordon Thomas

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Most patients with glaucoma exhibit elevated intra-ocular pressure (IOP). A cost effective device that allows the patient to measure IOP at regular intervals may reduce vision loss. This research tested the Bausch & Lomb Proview self tonometer against a calibrated force meter. It further compared the Proview tonometer with results from the clinical gold standard, the Goldmann tonometer. Results show that the Proview tonometer has inaccuracies in calibration and uncertainties in clinical applications. If the Proview's calibration is corrected (using our results, e.g.), and the inaccuracies can be reduced, a device like the Proview has the potential to be clinically useful.

Original languageEnglish (US)
Title of host publicationBioengineering, Proceedings of the Northeast Conference
EditorsK Moxon, D E Sherif, S Kanakasabai
Number of pages2
StatePublished - Jan 1 2002
EventIEEE 28th Annual Northeast Bioengineering Conference - Philadelphia, PA, United States
Duration: Apr 20 2002Apr 21 2002


OtherIEEE 28th Annual Northeast Bioengineering Conference
CountryUnited States
CityPhiladelphia, PA

All Science Journal Classification (ASJC) codes

  • Bioengineering

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