Myopia
Conditions
Interventions
Group 1:Wearing lenses Myolens 1
Group 2:Wearing lenses Myolens 2
Sponsors
Institute of Optometry and Vision Science
Eligibility
Sex/Gender
All
Age
8 Years to 12 Years
Inclusion criteria
Inclusion criteria: 1. Aged between 8 and 12 years old (including 8 years old and 12 years old); 2. Understand and sign the informed consent; 3. Agree to fulfill the follow-up schedule and be able to comply with all appointments specified in the study protocol during the study; 4. Agree to receive randomly assigned control or test lenses; 5. To be in good general health according to his/her and parent/guardian knowledge; 6. Combined ophthalmic best corrected visual acuity of +0.10 logMAR or better in each eye; 7. Moderate to low refractive error (-0.50 to -1.50D) and astigmatism (equivalent to -0.75DC, or less).
Exclusion criteria
Exclusion criteria: 1. Wearing contact lenses currently or within 3 months; 2. Currently or within 3 months of using bifocals, progressive multifocals, atropine, pirenzepine or any other myopia control treatment; 3. Frequent use of eye medications and artificial tears; 4. Currently used systemic drugs that may significantly affect contact lens wearing, tear film production, pupil size, accommodation or refractive status; 5. Known allergy to fluorescein, benzoate, proparacaine or tropamide; 6. A history of corneal ischemia, corneal ulcer, corneal infiltration, ocular viral or fungal infection or other recurrent ocular infection; 7. When the wearing distance is corrected in the far (4 meters) or near (40 cm) distance, the dominant strabismus is found by the masking and masking experiment; 8. Systemic or ocular diseases affecting eye health; 9. Keratoconus or irregular cornea; 10. For any given anterior segment ocular clinical sign, CCLRU grade >= 2; 11. Have pathological myopia; 12. Connective tissue diseases; 13. Subjects who are participating in or have participated in other clinical studies within two months before this trial; 14. Other circumstances that the investigator considers inappropriate to participate in this study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Spherical Equivalent; | — |
Secondary
| Measure | Time frame |
|---|---|
| Axial Length; | — |
Countries
China
Contacts
Public ContactLan Weizhong
Hunan AIER Institute of Optometry
Outcome results
None listed