Randomized Controlled Trial of Different Lens Treatments on Chinese Adolescent Myopia
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Progressive Myopia
- Sponsor
- Peking University People's Hospital
- Enrollment
- 120
- Locations
- 1
- Primary Endpoint
- Change of Ocular Axial Length
- Last Updated
- 10 years ago
Overview
Brief Summary
The purpose of this study is to determine the efficacy of different lens treatments (normal spectacle lens, ortho-K, & Myovision) on myopia control in Chinese adolescent patients.
Detailed Description
Different lens treatments include normal spectacle lens, orthokeratology, and Myovision (a specially designed spectacle lens commercially available with peripheral defocus controlled as relative myopia). This study is to evaluate the efficacy of these three methods in controlling myopia progression. Until now, there is no sufficient clinical evidences to compare different lens treatments.
Investigators
Eligibility Criteria
Inclusion Criteria
- •Adolescent myopia patients
- •Myopic refraction between -1.00D and -4.50D
- •Astigmatism equal or less than -1.50D
- •Normal break up time of tear film (BUT \> 10s)
Exclusion Criteria
- •Existence of any ocular diseases except ametropia
- •Hyperopia
- •Severe dry eye
Outcomes
Primary Outcomes
Change of Ocular Axial Length
Time Frame: Baseline, 6 months, 12 months
Ocular axial length (AL), which increases with age, will be measured 3 times by an IOLMaster. The first AL examination was considered as the baseline data, and will be repeated 6 and 12 months later.
Secondary Outcomes
- Change of Spherical Equivalent Refraction(Baseline, 6 months, 12 months)