pre-myopia
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Participants who meet the diagnostic criteria preliminary and also conformed all of the following conditions will be included: 1. Aged between 6 to 12 years old; 2. Subject has at least one eye with a refractive state of >-0.50 D and <=+0.75 D, astigmatism of equal or less than 1.50 D, and uncorrected visual acuity of equal or lower than 0.0 logMAR; 3. Participation is voluntarily and the parents or legal guardian of the children had signed the informed consent prior to inclusion.
Exclusion criteria
Exclusion criteria: Participants will be excluded from this trial if they have any of the following conditions: 1. Involved in any treatment for myopia, including orthokeratology, low-concentration atropine eye drops, medicine, acupuncture, electro-acupuncture, massage, moxibustion, ear acupuncture, vision training or other related treatments without termination; 2. Have serious systemic diseases, such as cardiovascular and cerebrovascular diseases, mental diseases, etc.; 3. Allergic to medical silicone; 4. According to the judgments of researchers, existing diseases or other situation which would reduce or complicate enrollment predispose to loss of follow-up; 5.Children with amblyopia, strabismus, corneal scar, cataract, glaucoma, ocular tumour, or other eye abnormalities were also excluded.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Incidence rate of myopia; | — |
Secondary
| Measure | Time frame |
|---|---|
| Uncorrected visual acuity;Cycloplegic spherical equivalent refraction;Axial length;Non-cycloplegic spherical equivalent refraction;Corneal curvature;Amplitude of accommodation;Accommodation facility;Incidence rate of myopia; | — |
Countries
China
Contacts
Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine