refractive error
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Age 18 or older, with stable spherical equivalent refraction over the past 12 months (change less than +/-0.5 D). 2. Spherical power between -1.00 D and -10.00 D, cylindrical power <=3.00 D, and the sum of the absolute values of spherical and cylindrical powers <=10.00 D. 3. Intraocular pressure between 10 and 21 mmHg (1 mmHg = 0.133 kPa). 4. Discontinuation of soft contact lenses for at least 2 weeks and rigid gas-permeable contact lenses for at least 4 weeks. 5. Clear cornea without significant opacity or nebula, normal corneal topography, and no signs of keratoconus.
Exclusion criteria
Exclusion criteria: 1. History of eye trauma or surgery; 2. Corneal contact lens-related epithelial changes; 3. Any contraindications to SMILE (such as keratoconus); 4. Pregnancy or breastfeeding during the study; 5. Other eye diseases; 6. Systemic organic lesions affecting post-operative recovery.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Corneal epithelial thickness;Corneal biomechanical parameters;aberration; | — |
Secondary
| Measure | Time frame |
|---|---|
| visual acuity without correction;spherical equivalent;intraocular pressure; | — |
Countries
China
Contacts
The Eye Hospital of Wenzhou Medical University