The Relationship of Relative Corneal Refractive Power Shift and Axial Length in Adolescents With Orthokeratology Lens

Completed

• Conditions: Myopia; Orthokeratology

• Registration Number: NCT05348369
• Lead Sponsor: Tianjin Eye Hospital

Brief Summary

Orthokeratology lens is an effective method for myopia control. This study analyzed the relationship between the relative corneal refractive power shift and change of axial length in adolescents with orthokeratology lens.

Detailed Description

Orthokeratology lens is an effective method for myopia control. This study aimed to investigate the relationship between the relative corneal refractive power shift and changes of axial length in adolescents with orthokeratology lens in 1 year. Other factors that may affect axial growth were also analyzed.

Study Timeline

• Study Start: 2018-01-01
• Primary Completion: 2019-12-31
• Study Completion: 2019-12-31
• Status Verified: 2022-04
• Study First Submitted: 2022-04-20
• Study First Submitted QC: 2022-04-20
• Last Update Submitted: 2022-04-20
• Study First Posted: 2022-04-27
• Last Update Posted: 2022-04-27

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 364

Inclusion Criteria

• age from 8 to 15years
• spherical equivalent(SE) was range from -1.00D to -5.00D
• conform to the standard of wearing orthokeratology lens

Exclusion Criteria

• ocular diseases and systemic diseases
• visual acuity was less than 20/20
• unable to follow visitors on time

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
The change of axial length	The change of baseline and 1years	The axial length was measured by AL-scan, its expressed in mm

Secondary Outcome Measures

Name	Time	Method
Relative corneal refractive power shift(RCRPS)	up to 1 year	The value of RCRPS was obtained and calculated from a corneal topography

Trial Locations

Locations (1)

Tianjin Eye Hospital; 🇨🇳 Tianjin, Tianjin, China