Refractive errors
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Aged >= 18 years; 2. The refractive power is basically stable for>=2 years (the increase in the refractive power of myopia does not exceed 0.50 D per year); 3. Before surgery, stop wearing soft contact lenses for at least 2 weeks, and stop wearing rigid contact lenses for at least 4 weeks, with normal corrected vision; 4. Spherical power = 1.0.
Exclusion criteria
Exclusion criteria: 1. There is active inflammation in the eye, suppuration around the eye, and serious ocular adnexal disease; 2. With glaucoma, keratoconus, systemic connective tissue diseases; 3. With mental illness, diabetes, systemic infectious diseases or autoimmune diseases, etc..
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Q value;Corneal high order aberrationsaberration; | — |
Secondary
| Measure | Time frame |
|---|---|
| Posterior surface elevation of the cornea; | — |
Countries
China
Contacts
Tianjin Medical University Eye Hospital