Myopia
Conditions
Interventions
FS-LASIK ACXL:femtosecond laser assisted LASIK combined accelerated corneal collagen crosslinking
FS-LASIK: femtosecond laser assisted LASIK
LASEK ACXL:laser assisted subepithelial keratomileusis combined accelerated corneal collagen crosslinking
LASEK: laser assisted subepithelial keratomileusis
Sponsors
Shaanxi Institute of Ophthalmology
Eligibility
Sex/Gender
All
Age
18 Years to 40 Years
Inclusion criteria
Inclusion criteria: High myopia eyes: myope diopter is less than -6.00D and astigmatism is less than 5.00D, or the minimum corneal thickness is in the range of 450 microns and 475 microns.The postoperatively corneal thinnest thickness should be no less than 400µm, and residual bed thickness should be no less than 280 microns. We follow the China corneal refractive surgery quality control consensus published in 2011.
Exclusion criteria
Exclusion criteria: The eyeball and/or circumocular inflammation; the abnormities of ocular appendages such as the eyelid defect, malformation, chronic dacryocystitis, etc; the keractoconus; severe dry eye; uncontrolled glaucoma; uncontrolled systematic diseases such as the desmosis, autoimmune diseases, diabetes, hypertention, etc.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| postoperative refractive diopter;corneal refractive power;corneal fibrous morphology; | — |
Secondary
| Measure | Time frame |
|---|---|
| corneal epithelial thickness;uncorrected visual acuity;Dry eye questionnaire-5; | — |
Countries
China
Contacts
Public ContactWei Wei
Shaanxi Institute of Ophthalmology, The First affiliated Hospital of Northwestern University
Outcome results
None listed