# Refractive Accuracy of "2WIN" and Portable Autorefractors

> **NCT04249505** · — · COMPLETED · sponsor: **Alaska Blind Child Discovery** · enrollment: 708 (actual)

## Conditions studied

- Refractive Error - Myopia Axial
- Astigmatism
- Accomodation
- Visual Impairment
- Hyperopia of Both Eyes

## Interventions

- **DEVICE:** "2WIN" Photoscreener
- **DEVICE:** "Plusoptix A12"
- **DEVICE:** "Retinomax"

## Key facts

- **NCT ID:** NCT04249505
- **Lead sponsor:** Alaska Blind Child Discovery
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2020-01-09
- **Primary completion:** 2021-04-01
- **Final completion:** 2021-04-01
- **Target enrollment:** 708 (ACTUAL)
- **Last updated:** 2021-07-23


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04249505

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04249505, "Refractive Accuracy of "2WIN" and Portable Autorefractors". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT04249505. Licensed CC0.

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