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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. ;


Study Design


Related Conditions & MeSH terms


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

See also
  Status Clinical Trial Phase
Completed NCT02643342 - A 2-year Longitudinal Study on the Structural and Optical Effects of Orthokeratology Treatment on Eye N/A
Active, not recruiting NCT04293328 - Monthly Replacement Orthokeratology for Myopia Control in Young Children N/A
Completed NCT02643875 - Investigation of the Effect of Short-term Orthokeratology With Increased Compression Factor on Ocular Parameters N/A
Recruiting NCT05192824 - Effects of Different Designs of Orthokeratology Lens on Myopia Control and Visual Quality N/A