myopic refractive error
Conditions
Interventions
SMILE group:Perform small-incision lenticule extraction(SMILE) to correct myopia.
FS-LASIK group:Perform femtosecond laser-assisted in-situ keratomileusis(FS-LASIK) to correct myopia.
Sponsors
Jinan Mingshui Eye Hospital
Eligibility
Sex/Gender
All
Age
18 Years to 30 Years
Inclusion criteria
Inclusion criteria: 1)The patient wishes to remove the spectacles and has reasonable expectations for the surgical effect; 2)Aged 18-30 years old; 3)The refractive status is stable, and the annual myopic refractive increase within two years does not exceed 0.5D; 4)spherical equivalent ranging from -3.00 to -10.00 D, cylinder power =2.00D, anisometropia <2.50D; 5)Pupil diameter: bright pupil =4cm, dark pupil =8cm; 6)Intraocular pressure 10~21mmHg (1mmHg= 0.133kPa); 7)Stop wearing soft contact lenses for at least 10 days, hard contact lenses for at least 1 month, and stop wearing orthokeratology lenses for more than 3 months
Exclusion criteria
Exclusion criteria: 1)Confirmed keratoconus or other types of corneal ectasia; 2)Active inflammatory reaction and infection in the eye; 3)Corneal thickness cannot meet the set cutting depth: central corneal thickness <450um, remaining cornea under the corneal flap after expected cutting The central stromal thickness is <280um, and the remaining central corneal stromal thickness after surgery is expected to be less than 50% of the preoperative corneal thickness; 4)Severe dry eye; 5)Severe eye adnexal lesions: such as eyelid defects, deformation, etc.; 6)Uncontrolled glaucoma ; 7)Cataracts affecting vision; 8)Fundus abnormalities and fundus surgery; 9)Uncontrolled systemic connective tissue diseases and autoimmune diseases; 10)Mental symptoms such as anxiety and depression
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| choroidal thickness;choroidal blood flow density;CT-C;CT-N1;CT-N2;CT-T1;CT-T2;CT-S1;CT-S2;CT-I1;CT-I2;CT-C;CT-N;CT-T;CT-S;CT-I; | — |
Secondary
| Measure | Time frame |
|---|---|
| axial length of eye;spherical equivalent;vision; | — |
Countries
China
Contacts
Public ContactYulin Lei
Jinan Mingshui Eye Hospital
Outcome results
None listed