The Effects of Visior on Ocular Hemodynamics

Study Overview
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Brief Summary
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To determine the relationship between the affects of viewing commercially available content through the VISIOR video goggles and ocular blood flow in glaucoma patients and healthy subjects.

Detailed Description
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To determine if glaucoma patients and healthy subject experience any alteration in localized retinal blood flow after retinal stimulation by viewing commercially available content through the VISIOR video goggles. Both groups will undergo measurements of arterial blood pressure, cardiac pulse (heart rate), intraocular pressure, and retinal blood flow using Heidelberg retinal flowmetry (Heidelberg Engineering, Heidelberg, Germany) at baseline and then ten minutes, thirty minutes, and sixty minutes after viewing commercially available content through the VISIOR video goggles for thirty minutes.

Official Title
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The Effects of Visior on Ocular Hemodynamics

Conditions
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Primary Open Angle Glaucoma

Intervention / Treatment
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* Device: VISIOR video goggles


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients with open-angle glaucoma 30 years or older, free from other ophthalmic disease, free from diabetes, beta agonists and uncontrolled blood pressure. Exclusion Criteria: Women who are pregnant or lactating or who plan to become pregnant (self reporting); smoker during last ten years (self reporting); systemic diseases that may interfere with blood flow measurements or wearing the goggles. In addition, 10 healthy subjects, age 18 or older, free from eye disease will be enrolled. Identical exclusion criteria apply to this healthy group. Identical procedures apply to this group, which only differs by ocular health status.

Ages Eligible for Study
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Minimum Age: 30 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Other
Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Glaucoma patients<br>To view commercially available content through the VISIOR video goggles for thirty minutes | Device: VISIOR video goggles<br>* View commercially available content through the VISIOR video goggles continuously for thirty minutes.<br>|
| Experimental: Healthy subjects<br>To view commercially available content through the VISIOR video goggles for thirty minutes. | Device: VISIOR video goggles<br>* View commercially available content through the VISIOR video goggles continuously for thirty minutes.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| retinal capillary blood flow | retinal capillary blood flow in arbitrary units | 1 day | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Primary open-angle glaucoma, retinal capillary blood flow, visual stimulation