It is suitable for cataract surgery, lens emulsification, perfusion and suction, anterior segment vitrectomy and coagulation of bleeding points during operation.
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Age: 50-75, regardless of gender; 2. Slit lamp examination showed that one eye or both eyes had cataract, and phacoemulsification combined with intraocular lens implantation was planned for one eye; 3. The best corrected visual acuity of the affected eye was<0.5; 4. The hardness of the lens nucleus of the operative eye was classified as Grade II-IV by Emery; 5. Good compliance, able to follow up according to the test process, voluntarily participate in the study, and sign the informed consent form.
Exclusion criteria
Exclusion criteria: 1. There is eye inflammation that seriously affects vision (such as acute and chronic dacryocystitis, dacryocystitis, infection, etc.); 2. There are other eye diseases that seriously affect vision (such as retinopathy, glaucoma, etc.); 3. Lens dislocation; 4. Predicted retinal visual acuity<0.3; 5. The density of corneal endothelial cells was less than 1500 cells/mm2; 6. The patient has a history of intraocular surgery within 2 years or ocular trauma within 3 months; 7. Suffering from serious systemic disease and not suitable for surgery; 8. Suffering from mental illness, cognitive dysfunction leads to poor compliance; 9. Pregnant or lactating women; 10. The researcher thinks it is not suitable to participate in this study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Best corrected visual acuity (BCVA); | — |
Secondary
| Measure | Time frame |
|---|---|
| Corneal endothelial cell loss;Corneal edema;Naked eye vision;Accumulated energy consumption;Aspiration Time;Ultrasonic time;Estimated Fluid Used;Instrument durability evaluation;Satisfaction evaluation of the researcher on the test instrument; | — |
Countries
China
Contacts
Ophthalmology Hospital Affiliated to Wenzhou Medical University