Monthly Replacement Orthokeratology for Myopia Control in Existing Lens Wearers — MR1  

Myopic Progression Clinical Trial

Official title: Accrued Effect of Orthokeratology for Myopia Control in Children and the Effectiveness of Myopia Control Using an Innovative Orthokeratology Modality. Experiment 1. Effect in Existing Ortho-k Wearers

Status Active, not recruiting

Clinical Trial Summary

The two-year prospective study aims at investigating the benefits of frequent replacement (monthly) orthokeratology lenses in myopia control in terms of effectiveness in control and prevention of ocular complications. The secondary objective will be investigating the use of weekly protein removal system in monthly replacement modality orthokeratology lenses on surface deposit.

Clinical Trial Description

This is a two-year randomized trial. Existing orthokeratology lens wearers (aged 8-13 years), who have completed a 2-year myopia control using orthokeratology, will be recruited and monitored for another two years. Eligible subjects will be randomly assigned to monthly or yearly replacement modality. Axial elongation and ocular conditions will be compared between the monthly and yearly replacement groups.

Subjects on monthly replacement lenses will be randomly assigned to normal cleaning and intensive cleaning groups. Subjects in normal cleaning group will be provided with complimentary contact lenses solutions for daily cleaning and disinfection. In addition to the daily procedures for lens case, subjects in the intensive cleaning group will be required to perform weekly protein removal. All subjects on yearly replacement lenses will be required to performed intensive cleaning such that they will follow normal daily cleaning and disinfection as well as weekly protein removal. ;

Related Conditions & MeSH terms

• Disease Progression
• Myopia
• Myopic Progression

• NCT number: NCT04295707
• Study type: Interventional
• Source: The Hong Kong Polytechnic University
• Status: Active, not recruiting
• Phase: N/A
• Start date: March 11, 2020
• Completion date: August 2023