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

The University of Texas Health Science Center, Houston107 enrolled

Overview

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.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

DIAGNOSTIC

Masking

NONE

Enrollment

107

Conditions

Intraocular Pressure

Interventions

Horizontal iCareOTHER

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 iCareOTHER

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

Sex: ALLMin age: 18 YearsHealthy volunteers:

Medical Language ↔ Plain English

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

Locations (1)

Robert Cizik Eye Clinic

Houston, Texas, United States

Outcomes

Primary Outcomes

IOP taken by iCare - horizontal

Time frame: 1 Day

IOP taken by iCare - vertical

Time frame: 1 Day

IOP taken by pneumatonometer

Time frame: 1 Day

Data from ClinicalTrials.gov

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