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OpenTrials
Completed

NCT Number: NCT05251155

Accuracy of Mobile-Based Vision Charts.

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

Completed

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Key information

Conditions

Visual Spatial Processing Behavior Spatial Behavior Spatial Processing

Age range

4 year–70 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Al-Nil Hospital

Banhā, QA, 13511, Egypt

About this study

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.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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.

Treatment and study plan

Distant best corrected visual acuity assessment

Diagnostic Test

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.

Primary outcomes

  1. Accuracy of mobile based "snellen chart" in measuring distant visual acuity.

    Time frame: Immediately after visual acuity testing using the standard chart projector.

    To compare the decimal results of mobile based snellen chart for measuring distant vision with the decimal results of the standard snellen chart projector.

Sponsors and collaborators

Lead sponsor

Benha University

Other

Registry information

Official study title

Accuracy of Mobile-Based Vision Charts in Clinical Practice.

Important dates

Study start
2020
Primary completion
2021
Study completion
2021
First posted
Feb 22, 2022
Registry last updated
Mar 29, 2022

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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