# The Effect of Early Glasses on the Development of Amblyopia

> **NCT04740593** · NA · ACTIVE_NOT_RECRUITING · sponsor: **Erasmus Medical Center** · enrollment: 601 (actual)

## Conditions studied

- Amblyopia
- Refractive Errors

## Interventions

- **OTHER:** Orthoptic care with the prescription of glasses from age 12-18 months onwards
- **OTHER:** Orthoptic care without the prescription of glasses from age 12-18 months onwards
- **OTHER:** First measurement only

## Key facts

- **NCT ID:** NCT04740593
- **Lead sponsor:** Erasmus Medical Center
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** ACTIVE_NOT_RECRUITING
- **Start date:** 2021-05-10
- **Primary completion:** 2026-03-31
- **Final completion:** 2026-03-31
- **Target enrollment:** 601 (ACTUAL)
- **Last updated:** 2025-08-11


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04740593

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04740593, "The Effect of Early Glasses on the Development of Amblyopia". Retrieved via AI Analytics 2026-05-25 from https://api.ai-analytics.org/clinical/NCT04740593. Licensed CC0.

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