myopia
Conditions
Interventions
Sponsors
Urumqi Aier Eye Hospital
Eligibility
Sex/Gender
All
Age
18 Years to 45 Years
Inclusion criteria
Inclusion criteria: Inclusion criteria: The patient has a personal desire for vision correction surgery with reasonable expectations, age between 18 and 45 years old, and has maintained relatively stable refractive status (with annual refractive changes =480 µm, predicted postoperative residual corneal stromal thickness >=280 µm, spherical power between -1.00 D and -9.00 D, and cylindrical power <= -3.00 D.
Exclusion criteria
Exclusion criteria: Exclusion Criteria: Exclude hyperopia and mixed astigmatism, as well as corneal ectatic disorders , moderate-to-severe dry eye syndrome, and other ocular pathologies. Patients must have no history of prior ocular surgery or trauma, psychiatric conditions or autoimmune diseases. Preoperative preparation requires: discontinuation of soft contact lenses for 1-2 weeks, rigid gas-permeable (RGP) lenses for >=1 month, and orthokeratology lenses for >=3 months. Intraoperative considerations include: significant dark spots or opaque bubble layer (OBL) affecting laser scanning quality, loss of suction during the procedure. Postoperative precautions involve: nonstandard medication use, complications such as elevated intraocular pressure, delayed visual recovery, corneal flap striae, or other surgical complications, noncompliance with prescribed eye drops, failure to attend scheduled follow-ups, or loss of follow-up data.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| corneal epithelial thickness;corneal thickness; | — |
Secondary
| Measure | Time frame |
|---|---|
| Visual acuity;Refractive power;Corneal aberration; | — |
Countries
China
Contacts
Public Contactzhangyangjing
Urumqi Aier Eye Hospital
Outcome results
None listed