Smartphone test for measuring flicker perception in patients with optic disorders
Validation of a Smartphone-Based Flicker Fusion Test
This study is testing a smartphone app that helps people with optic disorders quickly check their ability to see flickering lights.
Quick facts
| Phase | Not applicable |
|---|---|
| Study type | Interventional |
| Enrollment | 500 (estimated) |
| Ages | 18 Years to 80 Years |
| Sex | All |
| Sponsor | University of Iowa Academic / other |
| Locations | 1 site (Iowa City, Iowa) |
| Trial ID | NCT03475147 on ClinicalTrials.gov |
What this trial studies
This project aims to validate a smartphone app called eyeFusion, designed to quickly and easily measure flicker fusion thresholds in patients with optic disorders, specifically those with scotoma. The app presents a series of flickering stimuli, and users must identify the flickering region by tapping on it. The entire test takes less than two minutes to complete, making it a convenient tool for clinical settings. The study will assess the app's validity and lay the groundwork for future enhancements and validation efforts.
Who should consider this trial
Good fit: Ideal candidates for this study are adults aged 18-80 with clinically associated scotoma.
Not a fit: Patients with other ocular disorders or those outside the specified age range may not benefit from this study.
Why it matters
Potential benefit: If successful, this app could provide a rapid and accessible method for assessing visual function in patients with optic disorders.
How similar studies have performed: While the approach of using smartphone technology for visual assessments is gaining traction, this specific application for flicker fusion measurement is relatively novel and has not been extensively tested in prior studies.
Eligibility criteria
Show full inclusion / exclusion criteria
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
Where this trial is running
Iowa City, Iowa
- University of Iowa — Iowa City, Iowa, United States (Recruiting)
Study contacts
- Principal investigator: Randy Kardon, MD, PhD — University of Iowa
- Study coordinator: Julie K Nellis, BSN
- Email: julie-nellis@uiowa.edu
- Phone: 319-356-2780
How to participate
- Review the eligibility criteria above with your treating physician.
- Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
- Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.