myopia,presbyopia
Conditions
Interventions
SMILE Group:No
ICL Group:No
Monovision ICL group:No
Q value adjustment combined with monovision FS-LASIK group:No
Sponsors
Shanxi Aier Eye Hospital
Eligibility
Sex/Gender
All
Age
18 Years to 45 Years
Inclusion criteria
Inclusion criteria: Sub-project I: 1. Age >=18 years old; 2. The refractive power has been basically stable for at least 2 years (the annual increase in myopia refractive power does not exceed 0.50D); 3. Before the operation, stop wearing soft contact lenses for at least 2 weeks and stop wearing hard contact lenses for at least 4 weeks. The corrected vision is normal. 4. Spherical diopter =1.0. Sub-project II: Age between 18 and 35 years old; The patient himself has the desire to improve his refractive state through posterior chamber intraocular lens implantation with a lens. Have reasonable expectations for the surgical outcome; The diopter remains relatively stable within two years, with an annual increase of no more than -0.50D in the equivalent spherical lens. Diopter: -6.00D to -12.00D, astigmatism =1.0; The anterior chamber depth is >=2.8mm, the corneal endothelial cell density is >=2000 cells/mm ² with an open anterior chamber Angle, and the cell morphology is stable Sub-project III: Refractive errors (myopia and astigmatism) with age >=40 years and age-related accommodative insufficiency; Myopia degree =1.0; Mental health, having a correct understanding of the selected surgical design plan, and having reasonable expectations for the surgical outcome
Exclusion criteria
Exclusion criteria: Sub-project I: 1. There is active inflammation in the eyes, with purulent suppuration around the eyes and relatively severe lesions in the ocular appendages; 2. Accompanied by glaucoma, keratoconus, and systemic connective tissue diseases; 3. Accompanied by mental illness, diabetes, systemic infectious diseases or autoimmune diseases, etc. Sub-project II: Keratoconus or other corneal dilation changes are in an unstable state; Corneal endothelial dystrophy Severe dry eye syndrome Active ocular lesions or infections; Severe ocular adnexal lesions, such as eyelid defects and deformities, and severe eyelid insufficiency; Glaucoma, cataract; Retinal diseases that significantly affect vision; Severe anxiety, depression and other psychological and mental disorders; Diseases that prevent cooperation with examinations and surgeries, such as epilepsy, hysteria, etc. Severe hyperthyroidism with exophthalmos and the condition has not yet stabilized. Sub-project III: Non-age-related dysregulation; People over 60 years old or those who have developed age-related cataracts but have not yet significantly affected their vision; In addition to age-related accommodation insufficiency, there are significant abnormalities in binocular visual function such as disordered accommodation parameters and insufficient convergence. Having overly high expectations for the surgery.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Higher-order aberrations;Q value;Contrast sensitivity;Defocus curve;Visual acuity; | — |
Countries
China
Contacts
Public ContactPeng Chen
Shanxi Aier Eye Hospital
Outcome results
None listed