General anesthesia and regional anesthesia can be chosen in cesarean operations. Endotracheal intubation and mechanical ventilation are components of general anesthesia. Endotracheal intubation has been shown to cause increased intracranial pressure. There is not enough information about the effect of spinal anesthesia on intracranial pressure during cesarean operations. Increased intracranial pressure can cause neurological complications by disrupting brain perfusion. For this reason, the investigators think that the safe anesthesia method should be determined especially in pregnant patients who are at risk of increased intracranial pressure.

Inclusion Criteria:

• Undergoing elective c-section operation
• Age between 18-49
• ASA I-II
• Gestational week ≥ 36

Exclusion Criteria:

• Ophthalmologic disease and optic nerve pathology
• Increased intracranial pressure
• History of cerebrovascular disease
• Cases where spinal anesthesia is contraindicated
• Emergency cesarean category level 1

Pregnant and undergoing c-section operation