Refractive error
Conditions
Sponsors
Eye Hospital, Wenzhou Medical University
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: 1.Age >=18 years old, smooth operation without serious complications, no undercorrection after operation; 2.Patients without any ocular surface, lacrimal apparatus, cornea, lens and other diseases before surgery; 3.No previous history of eye surgery; 4.Complete clinical data and follow-up medical records; 5.Preoperative best corrected visual acuity reached or greater than 1.0; 6.The indexes of corneal topography did not indicate the possibility of keratoconus; 7.Standardized Corneal Thickness Requirements:?? Set the ?minimum postoperative residual stromal bed thickness (>=280µm)?? and ?central corneal thickness >=500µm;
Exclusion criteria
Exclusion criteria: 1.Previous history of eye diseases, such as corneal abnormalities, active eye infection or severe ocular surface diseases, glaucoma or suspected glaucoma patients, etc. 2.Incomplete corneal flap production during the operation or changing the surgical method during the operation; 3.Severe complications such as diffuse interlamellar keratitis, corneal thaw and infectious keratitis occurred after operation; 4.Systemic diseases, patients with systemic diseases themselves; 5.Exclude patients with excessively thin corneas (e.g., central thickness <500µm) or insufficient postoperative residual stromal bed (<280µm).??;
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Incidence of refractive regression; | — |
Secondary
| Measure | Time frame |
|---|---|
| Factors of refractive regression; | — |
Countries
China
Contacts
Public ContactYu Xinxin
Eye Hospital, Wenzhou Medical University
Outcome results
None listed