Vision Imparement Study for Endurance Athletes

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Dr. Marty Hoffman is beginning a study referred to as the ULTRA-EYE study:  Click HERE   for the link to the questionnaire

Have you ever experienced visual problems during an ultra marathon (difficulty seeing rather than hallucinations)? If so, we invite you to participate in a short questionnaire to learn about your experience.

The study is under the direction of Dr. Marty Hoffman, who has done many valuable studies with endurance athletes and in conjunction with the Western States 100 Mile Endurance Run. You may contact him to discuss the study at (916) 843-9027 or He is associated with the VA Northern California Health Care System

The main purpose of the study is to determine the personal and environmental conditions associated with such problems, and to detail the symptoms that are experienced.

Please note, our interest is specifically with difficulty seeing rather than visual hallucinations. If you are interested in participating, you will be asked to complete a short web-based questionnaire that will take 1-15 minutes to complete.

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