# The Berkeley Orthokeratology Study

> **NCT00000123** · PHASE3 · COMPLETED · sponsor: **National Eye Institute (NEI)**

## Conditions studied

- Astigmatism
- Myopia

## Interventions

- **DEVICE:** Polymethyl Methacrylate-Silicone Contact Lenses
- **DEVICE:** Polymethyl Methacrylate Contact Lenses

## Key facts

- **NCT ID:** NCT00000123
- **Lead sponsor:** National Eye Institute (NEI)
- **Sponsor class:** NIH
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 1978-01
- **Primary completion:** —
- **Final completion:** 1979-02
- **Target enrollment:** — (—)
- **Last updated:** 2009-09-17


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00000123

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00000123, "The Berkeley Orthokeratology Study". Retrieved via AI Analytics 2026-08-11 from https://api.ai-analytics.org/clinical/NCT00000123. Licensed CC0.

---

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