Patients will use a VR headset placed 5 minutes before spinal anesthesia and throughout the procedure, experiencing an immersive, calming nature-based environment (e.g., underwater ocean scenes, forest walks)

Patients will receive standard regional anesthesia with routine institutional sedation protocols (e.g., midazolam, fentanyl) without any VR intervention. They will wear an opaque eye mask to maintain blinding

A VR headset will be placed on the patient's head 5 minutes before the administration of spinal anesthesia. Throughout the intraoperative procedure under regional anesthesia, the patient will experience an immersive, calming, nature-based VR environment (such as underwater ocean scenes or forest walks) via specialized sights and sounds. This acts as a non-pharmacological distraction technique to reduce intraoperative anxiety and subsequently alleviate postoperative emergence agitation

Postoperative emergence agitation will be assessed using the unabbreviated Riker Sedation-Agitation Scale (SAS). The score ranges from a minimum value of 1 (unarousable) to a maximum value of 7 (dangerous agitation). A score of 4 indicates a calm and cooperative patient, while scores from 5 to 7 indicate increasing levels of agitation (higher scores mean worse agitation outcomes

Intraoperative anxiety and sedation levels will be evaluated using the unabbreviated Ramsay Sedation Scale (RSS). The score ranges from a minimum value of 1 (patient anxious and agitated or restless) to a maximum value of 6 (patient asleep with no response). Lower scores indicate higher anxiety and agitation levels, while higher scores indicate deeper sedation and better anxiety control.