Your phone could soon spot blind spots
NCT ID NCT03475147
First seen Jun 27, 2026 · Last updated Sep 09, 2026 · Updated 2 times
Summary
This study is testing a smartphone app called eyeFusion that measures how fast your eye can detect flickering lights. The goal is to see if the app can help doctors quickly find blind spots (scotomas) in people with eye disorders. About 500 people, including healthy volunteers and patients with known blind spots, will use the app during their clinic visit.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 500 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jan 2017
- Expected to finish
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Jan 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 80 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: Control * Age matched 18-80 years of age. * Healthy normal controls with no known eye disorders. Exclusion Criteria: * Scotoma or any other ocular disorder Inclusion Criteria - Patients * Age 18-80 * Clinically associated scotoma Exclusion Criteria - Patients -Any other ocular disorder
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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University of Iowa
Iowa City, Iowa, 52240, United States