vitreoretinopathy
Conditions
Interventions
Combination Group:A equal volumes combination of1% ropivacaine and 2% lidocaine
Sponsors
Eye Hospital, the First Affiliated Hospital of Harbin Medical University
Eligibility
Sex/Gender
All
Age
18 Years to 80 Years
Inclusion criteria
Inclusion criteria: Patients undergoing vitreoretinal surgery must simultaneously meet the following criteria: 1. Aged between 18 and 80 years inclusive, of either sex; 2. Subjects diagnosed with diabetic retinopathy, central or branch retinal vein occlusion, retinal detachment, macular retinal disease, silicone oil eye, or other conditions requiring vitreoretinal surgery; 3. Stable vital signs, with ASA physical status classification between Grade I and Grade III. 4. Subjects able to communicate fluently with medical staff; 5. Subjects voluntarily participating in the trial and having signed an informed consent form.
Exclusion criteria
Exclusion criteria: 1. Subjects with keratitis, anterior uveitis, or uveitis; those with orbital deformities or a history of orbital surgery; patients with ocular trauma, as injection of anaesthetic may cause temporary mild proptosis due to increased orbital pressure, and peribulbar anaesthesia may increase loss of ocular contents, hence such patients must be excluded; individuals with corneal thinning due to corneal dystrophy or other similar conditions unsuitable for peribulbar anaesthesia; 2. ASA physical status classification > Grade III; 3. Patients deemed unsuitable for this study by the investigator, or those judged incapable of completing the study, or those with poor compliance; 4. Known allergy or intolerance to the investigational medicinal product; 5. Pregnant or lactating women; 6. Subjects with a history of active or passive smoking.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| total anesthetic dose;Time of onset of analgesia;Time of onset of akinesia; | — |
Secondary
| Measure | Time frame |
|---|---|
| Pain scores at 24 hours after surgery;Duration of anesthesia; | — |
Countries
China
Contacts
Public ContactXuhui Yu
Eye Hospital, the First Affiliated Hospital of Harbin Medical University
Outcome results
None listed