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Assessment of the Validity, Reliability, and Feasibility of Two Smartphone Applications for Testing the Visual Acuity

NCT04936100 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 120

Last updated 2022-07-27

No results posted yet for this study

Summary

Visual acuity (VA) is the most common measure of visual function globally. In clinical settings and during screening events, VA is an important measure to quantify changes in vision over time. Additionally, in the context of epidemiological studies and population-based surveys, VA is a critical measure to determine the presence and degree of vision impairment and to report on the indicators of effective eye care service coverage (i.e. refractive error and cataract surgery), that are currently considered by World Health Organization (WHO) for monitoring progress towards the Universal Health Coverage.

There are numerous applications for assessing VA; however, the number of validated applications is limited. In this study, the investigators aim to evaluate the external validity, intra- and inter-observer reliability, and feasibility of two applications ("Easy Vision" and "Peek Acuity") for testing the visual acuity.

Conditions

Interventions

DEVICE

Assessment of distance and near visual acuity using "Vision Screening module" of "Easy Vision" application

The presenting visual acuity will be assessed using the Vision Screening module of the "Easy Vision" application.

DEVICE

Assessment of distance and near visual acuity using "Test Yourself module" of "Easy Vision" application

The presenting visual acuity will be assessed using the Test Yourself module of the "Easy Vision" application.

DEVICE

Assessment of distance and near visual acuity using "Peek Acuity" application

The presenting visual acuity will be assessed using the "Peek Acuity" application.

OTHER

Assessment of distance and near visual acuity using the conventional methods

The presenting visual acuity will be assessed using the conventional methods \["Chart: Tumbling E optotype" for assessing distance visual acuity and "Handheld chart: Tumbling E Near Point Vision Chart" for assessing near visual acuity\]

Sponsors & Collaborators

  • Shahid Beheshti University of Medical Sciences

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
HEALTH_SERVICES_RESEARCH
Masking
SINGLE
Model
CROSSOVER

Eligibility

Min Age
10 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2021-06-23
Primary Completion
2021-12-23
Completion
2022-01-30

Countries

  • Iran

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04936100 on ClinicalTrials.gov