Effects of Different Designs of Orthokeratology Lens on Myopia Control and Visual Quality
Status: Recruiting
Location: See location...
Intervention Type: Device
Study Type: Interventional
Study Phase: Not Applicable
SUMMARY
This study was aimed to evaluate the effects of different Orthokeratology，including the size of central optical zone and the height of peripheral reverse curve, on myopia control and visual quality.
Eligibility
Participation Requirements
Sex: All
Minimum Age: 8
Maximum Age: 13
Healthy Volunteers: t
View:
• Myopia: between -1.00D and 4.00D in both eyes
• Astigmatism: \<1.5D for with-the-rule astigmatism, \<1.00D for the against-the-rule astigmatism
• Visual acuity: the best corrected vision acuity(BCVA)≥20/20 in both eyes
• Subjects that volunteer to participate in the clinical trial and sign informed consent
Locations
Other Locations
China
Tianjin Eye Hospital
RECRUITING
Tianjin
Contact Information
Primary
Shuxian Zhang, MD
xindewo2006@163.com
+8618630996574
Time Frame
Start Date: 2021-12-10
Estimated Completion Date: 2025-12-31
Participants
Target number of participants: 200
Treatments
No_intervention: Single-vision glasses
Subjects wearing single-vision glasses CR-39
Experimental: Orthokeratology lenses group 1
Subjects wearing orthokeratology lenses of 5mm optical zone.
Experimental: Orthokeratology lenses group 2
Subjects wearing orthokeratology lenses of 5.5mm optical zone.
Experimental: Orthokeratology lenses group 3
Subjects wearing orthokeratology lenses of 6mm optical zone.
Experimental: Orthokeratology lenses group 4
Subjects wearing orthokeratology lenses of 6mm optical zone and the increased height of peripheral reverse curve.
Related Therapeutic Areas
Sponsors
Leads: Tianjin Eye Hospital