Myopia
Conditions
Interventions
Control group:No intervention
Test Group:Wear Multizone-Defocus-Plano Spectacles
Sponsors
Changsha Aier Eye Hospital
Eligibility
Sex/Gender
All
Age
7 Years to 14 Years
Inclusion criteria
Inclusion criteria: 1) 2nd grade students in elementary school. 2) Chinese nationality. 3) Equivalent spherical prescription (SER) -3.00D (inclusive) to +3.00D after astigmatism; Equivalent spherical prescription is defined as: spherical prescription + 1/2 column prescription; computerised optometry is performed after 30 minutes of astigmatism. 4) Astigmatism of less than or equal to 1.50D. 5) Refractive index less than or equal to 1.50D. 6) Best corrected visual acuity (BCVA) of not less than 1.0 (0.0 logMAR) in both eyes using a standard logarithmic visual acuity scale. 7) be able to wear lenses when working at close range.
Exclusion criteria
Exclusion criteria: 1) Patients with strabismus. 2) Patients with abnormal stereopsis. 3) Combination of other ocular diseases, including developmental abnormalities affecting visual function and refractive status. 4) A history of previous eye surgery. 5) Previous treatment with other myopia control treatments, including keratoplasty, soft or frame lenses with multifocal design, medication (e.g. atropine), vision training 6) Ongoing application that may affect pupil size and ocular surface function. 7) Combined with other systemic diseases that may affect visual function or refractive status 8) Have a relevant family history of hereditary type of eye disease 9) Other conditions that the investigator considers unsuitable for participation in the study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| axial length;Cycloplegic refraction;Equivalent spherical power; | — |
Countries
China
Contacts
Public ContactYang Zhikuan
Changsha Aier Eye Hospital, Aier Eye Hospital Group
Outcome results
None listed