myopia
Conditions
Interventions
Point-Matrix Technology (PMT) lenses group:Wearing Point-Matrix Technology (PMT) lenses
Single vision lens (SVL) group:Wearing SVL lenses
Sponsors
Affiliated Hospital of North Sichuan Medical College
Eligibility
Sex/Gender
All
Age
8 Years to 13 Years
Inclusion criteria
Inclusion criteria: 1. 8-13 years old 2. There is no restriction on gender 3. Myopia equivalent spherical power -1.00~-5.00D 4. Astigmatism<= -1.50D 5. Ansometropia<= 1.00D 6. The best corrected visual acuity of one eye is not less than 20/20 7. Strabismus does not exceed 20? 8. Have good cognition and be able to cooperate with the examination 9. Able to consent and participate in the follow-up study 10. Willing to participate in this study and sign the informed consent form
Exclusion criteria
Exclusion criteria: 1. Restricted activity due to medical illness, medications, or emotional state 2. Patients with organic diseases of the eyes and other parts 3. Those with a history of eye surgery in the past 4. Those who are combined with other drugs that may affect vision 5. Those who have worn contact lenses in the past month 6. Those who have used other myopia prevention and control methods in the past year (such as other defocus lenses, progressive lenses, bifocals, bifocal prisms, orthokeratology lenses, defocus soft lenses, defocus RGP, atropine, etc.) 7. Participation in other investigators that may directly or indirectly affect clinical outcomes within the past month 8. Subjects who are unable to communicate or do not follow instructions 9. Other conditions that the investigator considers inappropriate to participate in clinical trials
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Spherical equivalent; | — |
Secondary
| Measure | Time frame |
|---|---|
| axial length;choroidal thickness;intraocular pressure;accommodative facility; | — |
Countries
China
Contacts
Public ContactQingqing Tan
Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College
Outcome results
None listed