Refractive error
Conditions
Interventions
Experimental group:One eye wears a new type of soft contact lens, the other eye wears a classic multifocal soft contact lens, and after six months the contact lens brands are switched between the two
Control group:One eye wears classic multifocal soft contact lenses, the other eye wears new soft contact lenses, and after six months, the lens brands are swapped between the eyes.
Sponsors
Peking University Third Hospital
Eligibility
Sex/Gender
All
Age
8 Years to 12 Years
Inclusion criteria
Inclusion criteria: 1.Aged between 8-12 years, requiring written consent from their guardian, no gender restriction; 2.After cycloplegia, spherical refractive error in both eyes ranges from -1.00D to -4.00D, astigmatism =1.0; 4.Both eyes are normal except for refractive error, with no other abnormalities or diseases; 5.Voluntarily participate in this clinical trial and sign the informed consent form.
Exclusion criteria
Exclusion criteria: 1.History of intraocular surgery affecting contact lens wear; 2.Slit-lamp examination findings with clinical discrepancies; 3.Abnormal fundus examination results; 4.Abnormal intraocular pressure (IOP 21 mmHg); 5.Presence of other eye diseases, such as uveitis and various inflammations, significant dry eye, glaucoma, cataract, fundus disease, ocular tumors, ocular trauma, manifest strabismus, or any eye condition affecting visual function; 6.Patients with systemic diseases causing immunodeficiency (e.g., diabetes, Down syndrome, rheumatoid arthritis, psychiatric disorders, or other conditions deemed by the researcher inappropriate for wearing spectacles, etc.); 7.Only one eye meets the inclusion criteria; 8.Use of orthokeratology lenses, defocus soft contact lenses, defocus RGP lenses, or low-concentration atropine eye drops within the past 3 months; 9. Other conditions deemed unsuitable for inclusion by the researcher.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Cycloplegic refraction;Axial length of the eye;Corneal topography;Visual Quality Assessment;Posterior segment OCT;Refractive measurement around MRT; | — |
Countries
China
Contacts
Public ContactYu Zhang
Peking University Third Hospital
Outcome results
None listed