Myopic
Conditions
Interventions
test group:D.D.C dual-control technology framework glasses lenses
control group:HOYA Aspheric Mono-Optic Resin Lenses
Sponsors
The Zhongshan Ophthalmic Center,Sun Yat-sen University
Eligibility
Sex/Gender
All
Age
8 Years to 12 Years
Inclusion criteria
Inclusion criteria: 1. 8 years old = -1.50 D, and the absolute value of the difference between the equivalent spherical lenses of both eyes(refractive error)= 1.0 in both eyes; 4. Voluntarily participate in this clinical trial and sign the informed consent form.
Exclusion criteria
Exclusion criteria: 1. A history of ocular trauma or intraocular surgery; 2. clinically abnormal slit lamp examination findings; 3. funduscopic findings >= grade 2; 4. Abnormal intraocular pressure (IOP 21 mmHg); 5. Combined with other eye diseases, such as uveitis and other kinds of inflammation, glaucoma, cataract, fundus disease, ocular tumors, ocular trauma, patients with dominant strabismus; as well as any ocular pathology that affects visual function; 6. Patients suffering from systemic diseases resulting in immunocompromise (e.g. diabetes mellitus, Down's Syndrome, rheumatoid arthritis, psychiatric patients, or any other diseases considered by the researcher to be unsuitable for wearing frames, etc.); 7. Those who have participated in a drug clinical trial within 3 months and a device clinical trial within 1 month; 8. Those who have only one eye that meets the enrollment criteria; 9. Those who are unable to undergo regular eye examinations; 10. who have participated in any myopia control clinical research trial within three months, and who have previously used or are currently using rigid corneal contact lenses (including care products), multifocal contact lenses, progressive multifocal lenses and other speciallv designed myopia control lenses, atropine-based lenses, and so on:; 11. Those who are judged by the investigator not to be eligible for enrollment.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| equivalent spherical lens; | — |
Secondary
| Measure | Time frame |
|---|---|
| axilla (anatomy);corneal curvature;Crystal thickness;Choroidal thickness;anterior chamber depth(anatomy);Visual Questionnaire; | — |
Countries
China
Contacts
Public ContactJian Ge
The Zhongshan Ophthalmic Center,Sun Yat-sen University
Outcome results
None listed