# Efficacy of Coloured Overlays and Lenses for Reading Difficulty

> **NCT02680223** · NA · COMPLETED · sponsor: **City, University of London** · enrollment: 40 (actual)

## Conditions studied

- Vision Disorders
- Reading Disabilities

## Interventions

- **DEVICE:** Precision tinted lenses
- **DEVICE:** Non-beneficial tinted lenses

## Key facts

- **NCT ID:** NCT02680223
- **Lead sponsor:** City, University of London
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2016-01
- **Primary completion:** 2019-12
- **Final completion:** 2019-12
- **Target enrollment:** 40 (ACTUAL)
- **Last updated:** 2020-01-27


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT02680223

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT02680223, "Efficacy of Coloured Overlays and Lenses for Reading Difficulty". Retrieved via AI Analytics 2026-06-05 from https://api.ai-analytics.org/clinical/NCT02680223. Licensed CC0.

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