Smartphone Flicker Fusion Test for Patients With Optic Disorders.

Scotoma Clinical Trial

Official title:

Validation of a Smartphone-Based Flicker Fusion Test

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT03475147
• Other study ID #: 201610703
• Status: Recruiting
• Phase: N/A
• Start date: January 27, 2017
• Est. completion date: January 1, 2028

Study information

• Verified date: May 2024
• Source: University of Iowa
• Contact: Julie K Nellis, BSN
• Phone: 319-356-2780
• Email: julie-nellis[@]uiowa.edu
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The purpose of this project is to validate a quick, easy-to-use and administer smartphone flicker fusion test. The app (called eyeFusion) can potentially be used to easily and quickly collect critical flicker fusion measurements on patients admitted with optic disorders as part of the clinical care process.

Description:

The smartphone app developed is a flicker fusion that presents the subject with a series of stimuli consisting of a flickering pattern of bars above or below a static rectangle. For each stimulus presentation, the user has to tap the region that is flickering. The duration of the app is less than 2 minutes. This study will assess the validity of the test construct in measuring flicker fusion thresholds, and serve as a foundation for further iterative designs of the app and future validation and characterization studies.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 500
• Est. completion date: January 1, 2028
• Est. primary completion date: January 1, 2028
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 80 Years

Eligibility

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

Related Conditions & MeSH terms

• Scotoma

Intervention

Device:
• eyeFusion
Smartphone app based flicker fusion test.

Locations

Country	Name	City	State
United States	University of Iowa	Iowa City	Iowa

Sponsors (1)

Lead Sponsor	Collaborator
Randy Kardon

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Assess Validity of the test construct measuring flicker fusion thresholds.	The smartphone app developed is a flicker fusion that presents the subject with a series of stimuli consisting of a flickering pattern of bars above or below a static rectangle. The study will assess the validity of the test construct in measuring flicker fusion thresholds, and serve as a foundation for further iterative designs of the app and future validation and characterization studies.	1/1/2020