None
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. The patient's preoperative pulmonary function or arterial blood gas analysis was normal; 2. No preoperative complications of ophthalmic diseases or history of ophthalmology-related surgeries; 3. Age 18-65 years old; 4. BMI<=30kg/m^2; 5. ASA I-II grade; 6. Voluntarily participated in this study and signed the informed consent form.
Exclusion criteria
Exclusion criteria: 1. Suffering from ophthalmic diseases or having a history of relevant ophthalmic surgeries; 2.There are obvious cardiovascular and cerebrovascular diseases or other serious systemic diseases; 3. The patient has a history of asthma or long-term smoking; 4. Patients with difficult airways such as thoracic deformity and scoliosis; 5.Having taken any medication that causes an increase or decrease in intraocular pressure within 14 days; 6. Those who have difficulty expressing, communicating and understanding; 7. The patient or their family members refuse.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The intraocular pressure (IOP) value of both eyes after 45 minutes of the Trenberg position; | — |
Secondary
| Measure | Time frame |
|---|---|
| The intraocular pressure (IOP) values of both eyes at the completion of tracheal intubation during anesthesia induction;The intraocular pressure (IOP) values of both eyes when establishing pneumoperitoneum;The immediate intraocular pressure (IOP) value of both eyes in the Trenberg position;The intraocular pressure (IOP) value of both eyes in the 20-minute Trenberg position;Restore the immediate intraocular pressure (IOP) values of both eyes to the horizontal position;Restore the intraocular pressure (IOP) values of both eyes to the horizontal position for 15 minutes;Total time spent in Tronberg's postures;Anesthesia time;The end-respiratory carbon dioxide values at the above five time points; | — |
Countries
China
Contacts
No. 980 Hospital, Joint Logistics Support Force, People's Liberation Army