Comparing a Home Vision Self-Assessment Test to Office-Based Snellen Visual Acuity in Myopic Children

NCT ID: NCT06529367

Last Updated: 2024-08-01

Basic Information

• Recruitment Status: RECRUITING
• Total Enrollment: 80 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2024-07-31
• Study Completion Date: 2025-02-01

Brief Summary

This study aims to compare a home vision self-assessment test to office-based Snellen visual acuity in myopic children.

Detailed Description

Visual impairment is an important public health issue worldwide, with a heavy socioeconomic burden. More than 400 million people globally have mild to severe visual impairment.

Visual acuity (VA) screening is the most basic part of ophthalmic examination. Home vision screening tests have become an important way to obtain a measure of an individual's VA without an office-based clinic visit. Knowing a patient's VA can help ophthalmologists remotely triage acute calls, monitor visual recovery after medical or surgical interventions, and ensure visual stability in follow-up telemedicine visits.

Home vision screening tests have become an important way to obtain a measure of an individual's VA without an office-based clinic visit. Numerous electronic home vision assessment tools exist, but many of these are used through applications on mobile or tablet devices.

Conditions

Home Vision; Office-Based Snellen Visual Acuity; Myopic Children

Study Design

• Observational Model Type: COHORT
• Study Time Perspective: CROSS_SECTIONAL

Study Groups

Visual Acuity Testing group

Home vision assessment will be conducted using the "Letter Distance Chart" PDF document, a modified Early Treatment of Diabetic Retinopathy Study (ETDRS) chart for testing at 5 or 10 feet, and released for public use.

Patients will be asked to use the 5-foot distance for standardization, which allows for visual acuity assessment from 20/16 to 20/200.

Patients will be asked to wear their current corrective lens for distance, to take the test at home in a place with good lighting, and to test each eye separately.

Office-based vision testing will be performed by a trained ophthalmic technician in a dimmed room with the Snellen chart illuminated on a screen. Patients will be asked to wear their current corrective lens for distance and an eye occluder will be used to test each eye separately.

Snellen chart

Intervention Type: OTHER

Patients will be asked to use the 5 feet distance for standardization, which allows for visual acuity assessment from 20/16 to 20/200.

Patients will be asked to wear their current corrective lens for distance, to take the test at home in a place with good lighting and to test each eye separately.

Office-based vision testing will be performed by a trained ophthalmic technician in a dimmed room with the Snellen chart illuminated on a screen. Patients will be asked to wear their current corrective lens for distance and an eye occluder will be used to test each eye separately.

Interventions

Snellen chart

Patients will be asked to use the 5 feet distance for standardization, which allows for visual acuity assessment from 20/16 to 20/200.

Patients will be asked to wear their current corrective lens for distance, to take the test at home in a place with good lighting and to test each eye separately.

Office-based vision testing will be performed by a trained ophthalmic technician in a dimmed room with the Snellen chart illuminated on a screen. Patients will be asked to wear their current corrective lens for distance and an eye occluder will be used to test each eye separately.

Intervention Type: OTHER

Eligibility Criteria

Inclusion Criteria

• Age ≤ 18 years.
• Both sexes.
• Patients who completed the home visual acuity test and have a subsequent office-based visual acuity test.

Exclusion Criteria

• Last in-office visual acuity of 20/125 or worse in both eyes (to allow for a buffer of at least 2 lines of vision from the upper limit of 20/200 on the home vision assessment).
• Lack of access to MyChart.
• History of keratopathy, cataract, glaucoma, retinal detachment, neuro-ophthalmic disease, or other eye diseases.
• History of ophthalmic surgery or trauma.
• History of systemic diseases.
• Severe psychological or psychiatric diseases.

• Maximum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

South Valley University

OTHER

Sponsor Role: lead

Responsible Party

Ahmed Ali Amer

Lecturer of Ophthalmology, Faculty of Medicine, South Valley University, Qena, Egypt.

Responsibility Role: PRINCIPAL_INVESTIGATOR

Locations

South Valley University

Qina, , Egypt

Site Status: RECRUITING

Countries

Egypt

Central Contacts

Ahmed A Amer, MD

Role: CONTACT

ahmedali.ophth@gmail.com

00201011827000

Facility Contacts

Ahmed A Amer, MD

Role: primary

ahmedali.ophth@gmail.com

00201011827000

Other Identifiers

SVU\MED\OPH026/4/24/7/887

Identifier Type: -

Identifier Source: org_study_id