Refractive Accuracy of "2WIN" and Portable Autorefractors
The Refractive Accuracy of Photoscreeners "2WIN" and "PlusoptiX" and the "Retinomax" Auto Refractor
1 other identifier
observational
708
1 country
1
Brief Summary
Youth and some adults have photoscreening refractions and hand-held auto refraction before cycloplegia refraction during new and follow up eye examinations. Vector math is applied to each refraction to determine how closely the hand-held "dry" devices match actual refraction.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Jan 2020
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 9, 2020
CompletedFirst Submitted
Initial submission to the registry
January 29, 2020
CompletedFirst Posted
Study publicly available on registry
January 31, 2020
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 1, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
April 1, 2021
CompletedJuly 23, 2021
July 1, 2020
1.2 years
January 29, 2020
July 21, 2021
Conditions
Keywords
Outcome Measures
Primary Outcomes (3)
Refractive Accuracy
spherical equivalent
1 day
Refractive Accuracy
Vector transform J0 and J45 astigmatism
1 day
Refractive Accuracy
Spectacle comparison score (Percent similarity combined sphere-cylinder)
1 day
Secondary Outcomes (1)
Impact of age
1 day
Interventions
non-cycloplegia refraction by Adaptica "2WIN"
non-cycloplegic refraction by "Plusoptix A12" photoscreener
non-cycloplegic refraction by "Retinomax K+" auto refractor
Eligibility Criteria
children and adults attending pediatric ophthalmology and adult strabismus clinic
You may qualify if:
- Patient undergoing new or follow examination at pediatric eye and adult strabismus clinic Willing to undergo screening refractive device developmental delays included
You may not qualify if:
- Intraocular lens in place
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Alaska Children's EYE & Strabismus
Anchorage, Alaska, 99508, United States
Related Publications (1)
Arnold SL, Arnold AW, Sprano JH, Arnold RW. Performance of the 2WIN Photoscreener With "CR" Strabismus Estimation in High-Risk Patients. Am J Ophthalmol. 2019 Nov;207:195-203. doi: 10.1016/j.ajo.2019.04.016. Epub 2019 May 9.
PMID: 31077668BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Bob Arnold, MD
Coordinator Alaska Blind Child Discovery
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- RETROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 29, 2020
First Posted
January 31, 2020
Study Start
January 9, 2020
Primary Completion
April 1, 2021
Study Completion
April 1, 2021
Last Updated
July 23, 2021
Record last verified: 2020-07
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- ANALYTIC CODE
- Time Frame
- after study completed
- Access Criteria
- open
de-identified database shared on www.ABCD-Vision.org Website.