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OpenTrials
Completed

NCT Number: NCT02837536

Horizontal vs. Vertical Positioning of the iCare Rebound Tonometer and Effects on Intraocular Pressure Readings

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.

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Key information

Conditions

Intraocular Pressure

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Robert Cizik Eye Clinic

Houston, Texas, 77030, United States

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • 18 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

Exclusion criteria

  • 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

Treatment and study plan

Horizontal iCare

Other

IOP of the right eye will be measured using the iCare tonometer held in the horizontal position first and then in the vertical position.

Vertical iCare

Other

IOP of the right eye will be measured using the iCare tonometer held in the vertical position first and then in the horizontal position.

Primary outcomes

  1. IOP taken by iCare - horizontal

    Time frame: 1 Day

  2. IOP taken by iCare - vertical

    Time frame: 1 Day

  3. IOP taken by pneumatonometer

    Time frame: 1 Day

Sponsors and collaborators

Lead sponsor

The University of Texas Health Science Center, Houston

Other

Collaborators

  • Robert Cizik Eye Clinic

Registry information

Important dates

Study start
2016
Primary completion
2016
Study completion
2016
First posted
Jul 19, 2016
Registry last updated
Mar 8, 2017

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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