Measurement of Retinal Venous Pressure Under Short-term Low-oxygen Environment
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government.
Read our disclaimer for details.
The hypothesis is that the pressure in the retinal veins increases under a short-term lack of oxygen and leads to a decreased blood circulation. On the basis of measurements in the hypobaric chamber this hypothesis should be verified.
Condition or disease
Conduct a pilot study to describe and quantify the retinal venous pressure (RVP) in healthy volunteers under conditions of controlled, reduced ambient and oxygen partial pressure in the pressure chamber of the Aeromedical Institute FAI in Dübendorf, Switzerland. Obtaining evidence of the adaptation behavior of the retinal vascular system in controlled, short-term hypoxic changes.
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study:
18 Years to 60 Years (Adult)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
term medication (except contraceptives)
allergies to the ingredients Alcain, Tropicamide and Phenylephrine
blood pressure levels except standard (<60 /> 140 mmHg)