Refractive Error
Conditions
Interventions
experimental group:Perform Smartsight surgery
control group :Perform FS-LASIK??
Sponsors
Boao Super Hospital
Eligibility
Sex/Gender
All
Age
19 Years to 35 Years
Inclusion criteria
Inclusion criteria: 1. Patients with myopia and astigmatism aged 18 years and above; 2. On the basis of full understanding before surgery, the patient or his family members must sign the informed consent form when necessary; 3. Compliant diopter: relatively stable (change in diopter within the past 1 year <= 0.50D). Equivalent spherical power [-0.50D to -12.50D]; spherical power [-0.50D to -10.00D]; cylinder power [-5.00D to +5.00D]; 4. Cornea: transparent without obvious cloudiness or spotting; corneal topography examination is normal, no keratoconus tendency; 5. No other eye diseases and/or systemic organic lesions that affect the recovery of surgery; 6. Those who have no contraindications to surgery after preoperative examination.
Exclusion criteria
Exclusion criteria: 1. The patient cannot lie flat in a horizontal position; 2. The patient has problems with understanding and cannot give informed consent; 3. The patient cannot receive local or topical anesthesia; 4. Pregnant or breastfeeding; 5. Depressed mood or anxiety when unstable; 6. Improper motives or unreasonable expectations; 7. Collagen vascular, autoimmune or immunodeficiency diseases; 8. Herpes simplex virus infection, such as herpes zoster; 9. Diabetes; 10. Severe local infection or allergic disease, such as: keratitis; blepharitis; severe allergic eye disease, requiring regular treatment; 11. Previous therapy, such as radial keratotomy; 12. Corneal scarring that may affect the accuracy of intrastromal ablation in the treatment area; 13. Drugs that affect wound healing are used in treatment, such as: steroids; antimetabolites; immunosuppressants; 14. Drugs used in the treatment have side effects on the eyes, such as: isotretinoin (Accutane); amiodarone hydrochloride (Cordarone); 15. According to the investigator's judgment, the subject has uncontrollable systemic disease and cannot participate in the experiment.
Design outcomes
Secondary
| Measure | Time frame |
|---|---|
| Corneal aspheric parameters;Tear Break-Up Time;tear secretion test;Height of the river of tears; | — |
Primary
| Measure | Time frame |
|---|---|
| aberration; | — |
Countries
China
Contacts
Public ContactChen Wei
Affiliated Eye Hospital of Wenzhou Medical University
Outcome results
None listed