# Comparison of a Smartphone Based Self Refraction Tool With Conventional Refraction Error Estimation Methods

> **NCT03419351** · NA · UNKNOWN · sponsor: **University Hospital Tuebingen** · enrollment: 50 (estimated)

## Conditions studied

- Refractive Errors
- Self-Examination

## Interventions

- **DIAGNOSTIC_TEST:** Smartphone
- **DIAGNOSTIC_TEST:** Autorefractor
- **DIAGNOSTIC_TEST:** Individual

## Key facts

- **NCT ID:** NCT03419351
- **Lead sponsor:** University Hospital Tuebingen
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2017-11-20
- **Primary completion:** 2018-01-31
- **Final completion:** 2018-03-31
- **Target enrollment:** 50 (ESTIMATED)
- **Last updated:** 2018-02-01


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03419351

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03419351, "Comparison of a Smartphone Based Self Refraction Tool With Conventional Refraction Error Estimation Methods". Retrieved via AI Analytics 2026-06-14 from https://api.ai-analytics.org/clinical/NCT03419351. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*