Refractive error
Conditions
Interventions
Trans-PRK combined with monovision group:Trans-PRK operation method
FS-LASIK combined with monovision group:FS-LASIK operation method
Sponsors
Tianjin Medical University Eye Hospital
Eligibility
Sex/Gender
All
Age
40 Years to 60 Years
Inclusion criteria
Inclusion criteria: 1. Age >=40 years old; 2. The refractive status has been stable for more than 2 years; 3. Stop wearing soft contact lenses for more than 1 week; 4. The degree of spherical lens is 0D; 5. The lens is basically transparent.
Exclusion criteria
Exclusion criteria: 1. The whole body suffers from connective tissue diseases and autoimmune diseases; 2. Keratoconus or contusion keratoconus confirmed by corneal topography; 3. Active inflammation and infection of the eye or eye appendages; 4. Postoperative corneal stromal bed thickness is less than 250um; 5. Recently received other eye surgery, history of eye trauma, corneal disease and other eye diseases (including cataract, glaucoma, age-related macular degeneration, diabetic retinopathy, etc.).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| vision;Corneal topography;Dual-channel visual quality analysis system;Contrast sensitivity;Binocular stereopsis;Visual function; | — |
Countries
China
Contacts
Public ContactQi Yuanyuan
Tianjin Medical University Eye Hospital
Outcome results
None listed