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IOP Device Comparison Study

NCT04211792 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 101

Last updated 2021-09-02

No results posted yet for this study

Summary

Intraocular pressure measurement (IOP) is part of a routine eye examination. High and low eye pressure may be linked to certain eye conditions such as glaucoma. The current gold standard for IOP measurement is a technique called Goldmann Applanation Tonometry (GAT). GAT requires the use of a Goldmann applanation tonometer mounted on a slit lamp. Apart from GAT, there are many other devices that can be used to measure IOP, including the iCare tonometers. In this prospective study, investigators will be measuring participant's IOP with GAT, Icare PRO, and Icare ic200 tonometers to see if there is an agreement in IOP between the different devices. Investigator will also look if there is a concordance between different tonometers in low, moderate and high IOP range. Given the postural requirements for performing GAT, patients with higher body mass index (BMI) tend to have difficulties with proper positioning at the slit lamp that may lead to inaccurate GAT measurements. To this end, investigators will analyze the effect of BMI on IOP measurements with different devices. Additionally, comfort level of the patients with different tonometry devices will be recorded using a visual analog scale.

Conditions

  • Intraocular Pressure

Interventions

DEVICE

Icare Tonometer

Icare tonometers are a new class of rebound tonometers for IOP measurements. The Icare series of tonometers are hand-held tonometers, which are easy to operate and generally do not require topical anaesthesia for IOP measurements.

Sponsors & Collaborators

  • London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's

    lead OTHER

Principal Investigators

  • Tony Lin, MD · Ivey Eye Institute- St Joseph's hospital

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2020-03-01
Primary Completion
2021-07-31
Completion
2021-07-31

Countries

  • Canada

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04211792 on ClinicalTrials.gov