refractive error
Conditions
Interventions
Sponsors
Eye and ENT Hospital of Fudan University
Eligibility
Sex/Gender
All
Age
No minimum to 3 Years
Inclusion criteria
Inclusion criteria: 1. children aged no more than 3 years; 2. no history of asphyxia at birth, development and nutritional status is good; 3. no central nervous system disease; 4. The guardian of the subject has the ability to read, understand and voluntarily sign the written informed consent approved by the Ethics Committee (EC); 5. The guardian of the subject must be at least 18 years old on the date of signing the informed consent (ICF) and be able to provide informed consent voluntarily.
Exclusion criteria
Exclusion criteria: 1. the subjects had intraocular surgery (except cataract surgery); 2. the subjects have been randomized into the study before; 3. Participants participated in the clinical study of other drugs or devices within the first 30 days of enrollment and / or during the study; 4. the subjects have a serious chronic systemic diseases, such as cardiovascular disease, endocrine disease, liver and kidney disease or malignancy, or other diseases that researchers think are not suitable for participating in this study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Visual acuity; | — |
Secondary
| Measure | Time frame |
|---|---|
| examination time; | — |
Countries
China
Contacts
Public ContactZhou Xingtao
Eye and ENT Hospital of Fudan University
Outcome results
None listed