# Evaluation of Letters Versus Numbers (ELEVEN) Study

> **NCT04520243** · NA · COMPLETED · sponsor: **The University of Hong Kong** · enrollment: 59 (actual)

## Conditions studied

- Visual Acuity

## Interventions

- **DIAGNOSTIC_TEST:** Visual acuity assessment by ETDRS charts

## Key facts

- **NCT ID:** NCT04520243
- **Lead sponsor:** The University of Hong Kong
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2019-08-01
- **Primary completion:** 2020-01-31
- **Final completion:** 2020-01-31
- **Target enrollment:** 59 (ACTUAL)
- **Last updated:** 2020-08-20


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04520243

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04520243, "Evaluation of Letters Versus Numbers (ELEVEN) Study". Retrieved via AI Analytics 2026-06-01 from https://api.ai-analytics.org/clinical/NCT04520243. Licensed CC0.

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