Refractive error
Conditions
Interventions
Experimental Group:Novel technique
Sponsors
Xiamen Eye Center, Xiamen University
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: Inclusion Criteria 1. Patients aged 18 years or older with bilateral myopia and astigmatism (excluding monocular surgery); 2. Refractive error: Refractive error change <= 0.50 D within the past 1 year. The range is -1.00 to -10.00 D for spherical power and <= -5.00 D for cylindrical power. 3. The cornea must be clear with no obvious opacities or scarring; corneal topography must show normal morphology, and there must be no tendency toward keratoconus; 4. No other eye diseases and/or systemic organic conditions that may affect postoperative recovery; 5. Candidates must have no contraindications identified during preoperative examination; 6. Other criteria refer to excimer laser refractive surgeries such as excimer laser keratectomy, excimer laser subepithelial ablation, and LASIK.
Exclusion criteria
Exclusion criteria: 1. The patient’s head cannot be positioned normally 2. Severe amblyopia 3. Keratoconus or suspected keratoconus, other corneal ectatic diseases, and degenerative conditions 4. Corneal thinning. Current criteria for reference, pending further evidence-based medical support: predicted residual central corneal stroma thickness after lens removal 250 µm; 280 µm or greater is recommended); lens thickness <20 µm 5. Recent recurrent episodes of viral keratitis or other corneal diseases, severe dry eye, Sjögren’s syndrome with active ocular lesions or infections, severe adnexal lesions such as eyelid defects and deformities, severe eyelid insufficiency, uncontrolled glaucoma, vision-impairing cataracts, severe corneal diseases (such as corneal opacities including prominent corneal opacities, limbal keratopathy, corneal stromal or endothelial dystrophy, and other corneal diseases; post-corneal surgery, including post-corneal transplant and post-radial keratotomy; ocular trauma) etc. 6. Presence of systemic connective tissue diseases or autoimmune diseases, such as systemic lupus erythematosus, rheumatoid arthritis, multiple sclerosis, etc. 7. Known history of severe psychological or psychiatric disorders, such as anxiety or depression 8. Systemic diseases or psychiatric disorders, such as epilepsy or hysteria, that prevent cooperation during examinations and surgery
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Vision;Intraocular pressure, IOP;Corneal astigmatism;RMS value; | — |
Countries
China
Contacts
Public ContactBing Chen
Xiamen Eye Center, Xiamen University
Outcome results
None listed