Investigating the Safety and Effect of Overnight Orthokeratology and Its Influencing Factors

• Conditions: Myopia

• Registration Number: NCT04910451
• Lead Sponsor: Second Affiliated Hospital, School of Medicine, Zhejiang University

Brief Summary

To investigate the Safety and Effect of Overnight Orthokeratology and Its Influencing Factors in China

Detailed Description

Patients who were successfully prescribed with orthokeratology lenses in Eye Center of the Second Affiliated Hospital of Zhejiang University School of Medicine were enrolled in the study. Our study used two different methods to collect data. For complications and effect of orthokeratology information, data were collected by a retrospective survey. A questionnaire was used to collect influencing factors of safety and effect of orthokeratology.

Study Timeline

• Study Start: 2020-07-01
• Status Verified: 2021-05
• Study First Submitted: 2021-05-31
• Study First Submitted QC: 2021-05-31
• Last Update Submitted: 2021-05-31
• Study First Posted: 2021-06-02
• Last Update Posted: 2021-06-02
• Primary Completion: 2022-07-01
• Study Completion: 2022-07-01

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 400

Inclusion Criteria

• Patients who were successfully prescribed with ortho-k lenses in Eye Center of the Second Affiliated Hospital of Zhejiang University School of Medicine

Exclusion Criteria

• Patients who have ceased wearing orthokeratology or who were using other methods of myopia control

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
axial length	1 year	changes in axial length

Trial Locations

Locations (1)

Second Affiliated Hospital, School of Medicine, Zhejiang University; 🇨🇳 Hangzhou, Zhejiang, China