Accuracy of Mobile-Based Vision Charts.

Visual Spatial Processing Clinical Trial

Official title:

Accuracy of Mobile-Based Vision Charts in Clinical Practice.

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT05251155
• Other study ID #: RC-15-2-01
• Status: Completed
• Start date: February 1, 2020
• Est. completion date: July 21, 2021

Study information

• Verified date: March 2022
• Source: Benha University
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

Analyzing the accuracy of mobile-based distant vision charts in clinical practice as an economic alternative for standard vision charts.

Description:

Accuracy of mobile-based visual acuity testing in clinical practice is still debatable. The aim of this study was to analyze the accuracy of mobile-based distant vision chart in comparison to standard chart projector.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 288
• Est. completion date: July 21, 2021
• Est. primary completion date: April 11, 2021
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 4 Years to 70 Years

Eligibility

Inclusion Criteria:

• Subjects visited ophthalmology clinic at Al-Nil Hospital, Banha, EGYPT for visual acuity assessment.

• Subjects that their best corrected visual acuity was ranged from 0.1 to 1.0 in decimal form measured on snellen's chart.

Exclusion Criteria:

• Subjects that refuse to measure visual acuity twice during the same visit.

• Subjects that their best corrected visual acuity is less than 0.1 in decimal form by the standard chart projector.

Related Conditions & MeSH terms

• Visual Spatial Processing

Intervention

Diagnostic Test:
• Distant best corrected visual acuity assessment
Measuring distant visual acuity on snellen's chart using two methods and results were converted to equivalent logarithm of minimum angle of resolution to compare accuracy of mobile based chart to the standard vision chart.

Locations

Country	Name	City	State
Egypt	Al-Nil Hospital	Banha	QA

Sponsors (1)

Lead Sponsor	Collaborator
Benha University

Country where clinical trial is conducted

Egypt, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Accuracy of mobile based "snellen chart" in measuring distant visual acuity.	To compare the decimal results of mobile based snellen chart for measuring distant vision with the decimal results of the standard snellen chart projector.	Immediately after visual acuity testing using the standard chart projector.