Measurement of the Eye's Blood Vessels Using the Dynamic Vessel Analyzer (DVA)

Completed

Conditions studied: Healthy

In brief

The purpose of this research study is examine the response of the blood vessels in the eye to a light flicker stimulus using the Dynamic Vessel Analyzer (DVA) on two separate days in healthy individuals. The DVA uses an instrument which is used during routine eye examinations. The hypothesis of the study is that the changes in eye's blood vessel will be similar between the two visits; thus establishing reproducibility of the measurements for future comparisons to individuals with stroke or heart disease. In addition, this study will compare the eye's blood vessel responses to responses of the blood vessels in the arm using Doppler ultrasound.

Key facts

Study ID

NCT00783029

Run by

Penn State University

People needed

87

Starts

2008-10-01

Expected to finish

2011-12-01

Last updated by the study team

2012-02-07

Who can join

Age: 21 and older, up to 65. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Healthy Individuals
• Age: 21 to 65 years
• Non-smokers
• Non-obese

You may not qualify if…

• History of cardiovascular, pulmonary, peripheral vascular disease, renal, prostate, and urinary retention disease; Hypertension; Narrow angle Glaucoma or Age Related Macular Degeneration.
• Pregnancy
• Inability to fixate using eye device
• Does not wish to participate

Where it is running

• Penn State Milton S. Hershey Medical Center — Hershey, Pennsylvania, United States

Full record on ClinicalTrials.gov

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