NCT02310880|Completed
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Sponsor study identifier
observational
35
1 country
1
Study Start
September 2010
Date type not reportedThis date has not been verified as actual or estimated.
Primary Completion
March 2015
Actual (reported)Study Completion
March 2015
Actual (reported)Low vision patients have difficulty acquiring sufficient visual information in a timely manner for the purpose of performing challenging daily tasks, such as traveling independently and safely through busy streets. The advance of virtual reality techniques has provided a potential platform for training low vision patients to use their remaining vision more efficiently, but the key issue is always whether the patient's visual experiences in a virtual world can be transferred to the real world. The proposed study is designed to provide definite answer to this question.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
March 2015
Actual (reported)Click on a node to explore related trials.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
September 2010
Date type not reportedThis date has not been verified as actual or estimated.
December 3, 2014
Actual (reported)December 8, 2014
Actual (reported)March 2015
Actual (reported)March 2015
Actual (reported)The percentage of dangerous street crossing decisions and the street crossing decision safety scores
The percentage of dangerous street crossing decisions is determined at real street corners during pre- and post-training evaluation sessions. The subject is asked to say "GO" when she feels it is the safest time to cross the street. A crossing decision is scored as dangerous if it is initiated in the red traffic light cycle or if there is \< 25% of the "WALK" cycle left. The percentage is the total number of dangerous decisions divided by the total number of crossing decisions made during one evaluation session. The safety of a crossing decision is further quantified by recording the decision timing using a stopwatch and by converting the recorded time to a safety score. The safety score is a continuous scale between 0 and 1.0. The larger the safety score, the safer is the crossing decision. A statistically significant reduction in the percentage dangerous crossing decisions and an increase in the safety scores after training is an indication of successful skill learning and transfer.
3-5 1-hour visits
Low vision subjects trained in virtual streets and observed in real streets
Low vision subjects trained in real streets and observed in real streets
Low vision participants will be recruited from the patient populations of the Clinics of UAB School of Optometry and UAB Center for Low Vision Rehabilitation
The Clinical Eye Research Facility
Birmingham, Alabama, 35294, United States
Lei Liu, PhD
University of Alabama at Birmingham
35 participants (actual enrollment reported by the registry).
First Submitted
December 3, 2014
First Posted
December 8, 2014
Study Start
September 2010
Date type not reportedThis date has not been verified as actual or estimated.
Predictors of Driving Performance and Successful Mobility - Rehabilitation in Patients With Medical Eye Condition
Contact the study team to confirm eligibility.
Primary Completion
March 2015
Actual (reported)Study Completion
March 2015
Actual (reported)Last Updated
May 27, 2015
Record last verified: 2014-12
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Source: ClinicalTrials.gov.
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