Evaluation of Postoperative Intracranial Pressure in Patients Undergoing Intracranial Tumor Surgery

Inclusion Criteria: * Patients over 18 -65 years * Brain malignant neoplasm tumor * Brain benign neoplasm supratentorial * Brain benign neoplasm infratentorial information Exclusion Criteria: * Patients who cannot provide adequate image quality in ocular ultrasonography * Who are unconscious or have a Glasgow coma scale of less than 15 * Pseudotumor cerebri * Optic nerve arachnoid cyst * Patients with open injuries involving the eyelid and surrounding area * Optic nerve malignant neoplasm * Injury of the optic nerve and its pathways * Systemic Lupus Erythematosis, * Scleroderma * Multiple Sclerosis, sarcoidosis * Thyrotoxicosis (hyperthyroidism)