Trial Outcomes & Findings for Understanding Visual Confusion Using Stereoscopic Displays (NCT NCT04957745)
NCT ID: NCT04957745
Last Updated: 2023-07-10
Results Overview
(Total time the peripheral target in the visual confusion condition was visible) / (total viewing time (=1 min))
COMPLETED
NA
13 participants
Approximately 1-2 sessions to finish total 6 trials, up to 2 hours for each session, any time within the 4month study period
2023-07-10
Participant Flow
13 participants were recruited and screened for eligibility and all of them met the inclusion criteria.
13 participants were recruited and screened for eligibility and all of them met the inclusion criteria.
Participant milestones
| Measure |
Visual Confusion
Participants viewed peripheral targets in three different visual confusion conditions (three interventions): binocular visual confusion (unilateral opaque target), unilateral monocular visual confusion (unilateral see-through target), and bilateral monocular visual confusion (bilateral see-through target). Each intervention was presented twice in a randomized order, resulting in a total of six trials. During each trial, a peripheral target was presented in front of a forward-moving background for one minute. Participants were instructed to hold down the controller button while the target was visible and release it when a third or more of the target disappeared. After each trial, participants could take a brief break before the next trial in a different visual confusion condition was presented in a randomized order.
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|---|---|
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Overall Study
STARTED
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13
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Overall Study
COMPLETED
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13
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Overall Study
NOT COMPLETED
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0
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Reasons for withdrawal
Withdrawal data not reported
Baseline Characteristics
Understanding Visual Confusion Using Stereoscopic Displays
Baseline characteristics by cohort
| Measure |
Visual Confusion
n=13 Participants
The study participants will respond to various visual confusion stimuli presented on a stereoscopic display designed to simulate binocular/monocular visual confusions
Visual confusion: We will show peripheral target images on a background motion in a stereoscopic display. For the binocular visual confusion condition, the target peripheral image will be displayed on only one eye. For unilateral and bilateral monocular visual confusion conditions, the half-transparent peripheral image will be displayed on only one eye and both eyes, respectively.
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Age, Continuous
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30.46 years
STANDARD_DEVIATION 7.25 • n=5 Participants
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Sex: Female, Male
Female
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8 Participants
n=5 Participants
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Sex: Female, Male
Male
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5 Participants
n=5 Participants
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Race/Ethnicity, Customized
White/Non-hispanic
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5 Participants
n=5 Participants
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Race/Ethnicity, Customized
Asian/Non-hispanic
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8 Participants
n=5 Participants
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Region of Enrollment
United States
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13 participants
n=5 Participants
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Visual acuity
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19.38 Snellen fraction (20/X)
STANDARD_DEVIATION 4.21 • n=5 Participants
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Stereo-acuity
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27.7 arcseconds
STANDARD_DEVIATION 9.28 • n=5 Participants
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PRIMARY outcome
Timeframe: Approximately 1-2 sessions to finish total 6 trials, up to 2 hours for each session, any time within the 4month study periodPopulation: Each subject observed two trials in each visual confusion condition. There were three visual confusion conditions, so each subject participated in 6 trials. Since 13 subjects participated, the total number of trials analyzed was 78 trials (6 \* 13). For each visual confusion condition, 26 trials were analyzed.
(Total time the peripheral target in the visual confusion condition was visible) / (total viewing time (=1 min))
Outcome measures
| Measure |
Visual Confusion
n=78 Trials
Participants viewed peripheral targets in three different visual confusion conditions (three interventions) - Binocular visual confusion (unilateral opaque target), Unilateral monocular visual confusion (unilateral see-through target), and Bilateral monocular visual confusion (bilateral see-through target) - twice in a randomized order, resulting in a total of six trials.
During each trial, the peripheral target in a different visual confusion in front of a forward-moving background was presented to the participant for 1 minute. Participants were instructed to hold down the controller button while the target was visible and release it when a third or more of the target disappeared.
After each trial, participants could take a brief break (e.g., blinking eye) before the next trial in a different visual confusion condition was presented in a randomized order.
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Percentage of Total Viewing Time That Peripheral Target is Perceived
Binocular visual confusion (unilateral opaque target)
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73.56 Percentage of Time
Standard Deviation 17
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Percentage of Total Viewing Time That Peripheral Target is Perceived
Unilateral monocular visual confusion (unilateral see-through target)
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59.64 Percentage of Time
Standard Deviation 25.42
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Percentage of Total Viewing Time That Peripheral Target is Perceived
Bilateral monocular visual confusion (bilateral see-through target)
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87.81 Percentage of Time
Standard Deviation 13.85
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Adverse Events
Visual Confusion
Serious adverse events
Adverse event data not reported
Other adverse events
Adverse event data not reported
Additional Information
Dr. Jaehyun Jung
Schepens Eye Research Institute of Massachusetts Eye and Ear
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place