High Myopia
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Age range between 21-45 years old with the progression of myopia stable (the degree increase in recent one year = 6.00D; 3. Anterior chamber depth >= 2.8mm, peripheral chamber angle >= 30 degrees and corneal endothelial cell density >= 2000 cells · mm-2; 4. Preoperative intraocular pressure < 21mmhg (1kPa = 7.5mmhg); 5. The subjects themselves had reasonable expectations of the operation before the operation, fully understand the possible complications of the surgery, sign the informed consent in person, and are able to be followed-up on time.
Exclusion criteria
Exclusion criteria: 1. Pupil diameter > 7.5mm; 2. There are organic or morphological lesions caused by high myopia, such as posterior scleral staphyloma, primary open-angle glaucoma, macular splitting, cystoid macular edema, etc; 3. The subjects have combined condition of any ocular or systemic diseases that may affect the refractive status of the eyes. For example, Marfan's syndrome, retinopathy of prematurity, diabetes, etc; 4. The subjects who is incline to have scar constitution or has systemic collagen disease, etc; 5. Preoperative primary glaucoma and intraocular pressure > 21mmhg caused by various reasons.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| corneal endothelial cell density;Time of Surgery; | — |
Secondary
| Measure | Time frame |
|---|---|
| IOP;UCVA, BCVA;Vault; | — |
Countries
China
Contacts
Changsha Aier Eye Hospital