Horizontal vs. Vertical Positioning of the iCare Rebound Tonometer and Effects on Intraocular Pressure Readings
1 other identifier
interventional
107
1 country
1
Brief Summary
The goal of this study is to evaluate the agreement between intraocular pressure (IOP) measurements taken by iCare, held in both vertical and horizontal positions. In addition, iCare measurements will be compared against pneumotonometry measurements to assess for accuracy.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Jun 2016
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
June 23, 2016
CompletedFirst Submitted
Initial submission to the registry
July 8, 2016
CompletedFirst Posted
Study publicly available on registry
July 19, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 20, 2016
CompletedStudy Completion
Last participant's last visit for all outcomes
December 23, 2016
CompletedMarch 8, 2017
March 1, 2017
27 days
July 8, 2016
March 6, 2017
Conditions
Outcome Measures
Primary Outcomes (3)
IOP taken by iCare - horizontal
1 Day
IOP taken by iCare - vertical
1 Day
IOP taken by pneumatonometer
1 Day
Study Arms (2)
Horizontal iCare
ACTIVE COMPARATORIn the horizontal iCare arm, these patients were randomized to have their IOP measured with the iCare tonometer held in the horizontal position first and then their IOP measured with the iCare tonometer held in the vertical position.
Vertical iCare
ACTIVE COMPARATORIn the vertical iCare arm, these patients were randomized to have their IOP measured with the iCare tonometer held in the vertical position first and then their IOP measured with the iCare tonometer held in the horizontal position.
Interventions
IOP of the right eye will be measured using the iCare tonometer held in the horizontal position first and then in the vertical position.
IOP of the right eye will be measured using the iCare tonometer held in the vertical position first and then in the horizontal position.
Eligibility Criteria
You may qualify if:
- years of age or older
- Must be able to understand and sign and informed consent form that has been approved by an Institutional Review Board/Ethics Committee
You may not qualify if:
- Evidence of corneal epithelial defects or pathology affecting corneal rigidity
- Use of topical ophthalmic medications (except for artificial tears)
- History or corneal surgeries
- Any condition that would prevent or inhibit intraocular pressure measurements using iCare or pneumotonometry
- Evidence of ocular infection 30 days prior to enrollment
- Allergy to proparacaine or latex
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Robert Cizik Eye Clinic
Houston, Texas, 77030, United States
Study Officials
- PRINCIPAL INVESTIGATOR
Robert M. Feldman, M.D.
Robert Cizik Eye Clinic
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- DIAGNOSTIC
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- M.D.
Study Record Dates
First Submitted
July 8, 2016
First Posted
July 19, 2016
Study Start
June 23, 2016
Primary Completion
July 20, 2016
Study Completion
December 23, 2016
Last Updated
March 8, 2017
Record last verified: 2017-03
Data Sharing
- IPD Sharing
- Will not share