Comparing a new eye pressure device with common eye pressure tests in glaucoma
Tests how accurately the TonoVera device measures eye pressure in people with glaucoma.
Plain-language title generated from the registry record
Registry title: Comparison of Intraocular Pressure Measurement With the Novel TonoVera Device With Other Commonly Used Devices
Key facts
- Where
- Buffalo, United StatesSee the site
Where in United States
- Ross Eye InstituteBuffalo, United StatesTaking people
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Trial details
- Who runs it
- State University of New York at Buffalo
- Trial code
- NCT05523622
- Record updated
- 6 May 2026
- Original description
We are testing the accuracy of Reichert's Tono-Vera tonometer by comparing measurements of IOP with this device and measurements with other commonly-used tonometers, including Goldmann Applanation and iCare.Read full original descriptionShow less
Comparison of Intraocular Pressure Measurement With the Novel TonoVera Device With Other Commonly Used Devices
We are testing the accuracy of Reichert's Tono-Vera tonometer by comparing measurements of IOP with this device and measurements with other commonly-used tonometers, including Goldmann Applanation and iCare.
Inclusion: Ability to provide signed and dated informed consent form. Patients willing to comply with all study procedures and be available for the duration of the study; Male or female patients aged 18 to 99 Patients in good general health as evidenced by ability to come to their appointment on day of study.
Exclusion: Patients age less than 18 years Patients unable or unwilling to provide informed consent to participate in the study Patients for which an accurate tonometry reading cannot be performed. This may include those with blepharospasm (lid squeezers), nystagmus, extensive corneal pathology, or contact lens wearers who cannot remove their contact lens.Patients with significant scleral thinning Patients with a known allergy to proparacaine or fluorescein as these are used to anesthetize and allow measurement respectively of the eye when used with the Goldmann tonometer.