Myopic Control for High Myopes Using Orthokeratology — HM-PRO  

Myopia Clinical Trial

Official title: High Myopia - Partial Reduction Orthokeratology Study

Status Completed

Clinical Trial Summary

The purpose of this study is to evaluate and compare the eyeball elongation in high myopic children using partial correction orthokeratology and single-vision spectacles.

Clinical Trial Description

Orthokeratology (ortho-k) has been shown to have strong potential for retardation of myopic progression in low myopes. To date, clinical experience has shown the technique to be less effective in achieving full myopic reduction in high myopes. Would myopic control be possible for high myopes undergoing partial correction ortho-k treatment?

A randomized, longitudinal study is designed to investigate the efficacy of partial correction ortho-k in retardation of myopic progression in high myopic children. Eye growth in terms of axial length elongation in children wearing ortho-k and over-spectacles (to correct residual refractive errors) (study group) and those wearing single-vision spectacles (control group) will be evaluated and compared. ;

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind (Investigator), Primary Purpose: Treatment

Related Conditions & MeSH terms

• Myopia

• NCT number: NCT00977236
• Study type: Interventional
• Source: The Hong Kong Polytechnic University
• Status: Completed
• Phase: N/A
• Start date: July 2008
• Completion date: December 2012