Completed OBSERVATIONAL NCT07294404

Peripheral Relative Refractive Power of Orthokeratology Lenses

Effectiveness of Orthokeratology and Peripheral Retinal Refraction Changes

Sponsor: Tianjin Eye Hospital

Conditions Myopia Myopia; Refractive Error

Updated 3 times since 2026 Last updated: Feb 26, 2026 Started: Jan 10, 2020 Primary completion: Jun 15, 2021 Completion: Oct 19, 2021

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

This observational or N/A phase trial investigates Myopia and Myopia; Refractive Error and is currently completed. Tianjin Eye Hospital leads this study, which shows 3 recorded versions since 2020 — indicating limited longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.

Status Flow

Change History

3 versions recorded

Mar 2026 — Present [monthly]

Completed
Feb 2026 — Mar 2026 [monthly]

Completed
Jan 2026 — Feb 2026 [monthly]

Completed

First recorded

Jan 2020

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Tianjin Eye Hospital

Data source: Tianjin Eye Hospital

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

• Tianjin, China