Gocheck Kids vs. Welch Allyn Spot Vision Screener
Public ClinicalTrials.gov record NCT04321538. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Evaluation of the GoCheck Kids Mobile Vision Screening Application and the Welch Allyn Spot Vision Screener
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The investigators are conducting a prospective evaluation of the ability of two vision photoscreening devices (GoCheck Kids and the Welch Allyn Spot Vision Screener) to detect risk factors for amblyopia. Photoscreeners function similar to having a picture taken with a camera. Amblyopia is decreased vision in one or both eyes due to decreased vision development in the brain resulting from decreased visual stimulation. Children ages 1 year to less than 7 years of age referred to a pediatric ophthalmologist at Yale New Haven Health and Yale Medicine locations for a failed vision screen will be offered participation. The ability of each screening device to detect amblyopia risk factors will be compared with the results of a complete eye exam performed by the practitioner.
Study identification
- NCT ID
- NCT04321538
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 227 participants
Conditions and interventions
Conditions
Interventions
- Gocheck Kids Device
- Welch Allyn Spot Vision Screener Device
- Physical Exam Diagnostic Test
Device · Diagnostic Test
Eligibility (public fields only)
- Age range
- 1 Year to 7 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jan 31, 2021
- Primary completion
- Dec 18, 2022
- Completion
- Dec 18, 2022
- Last update posted
- Feb 28, 2023
2021 – 2022
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Yale New Haven Hospital | New Haven | Connecticut | 06510 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04321538, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Feb 28, 2023 · Synced Sep 2, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04321538 live on ClinicalTrials.gov.