| Not Yet Recruiting | Non-invasive Intracranial Pressure Monitoring in Brain Tumor Patients NCT07286396 | Tanta University | — |
| Not Yet Recruiting | Different Intraperitoneal Pressures on Optic Nerve Sheath Diameter in Laparoscopic Surgeries NCT07155109 | Diskapi Yildirim Beyazit Education and Research Hospital | N/A |
| Recruiting | Prospective Ocular Imaging for Intracranial Pressure Evaluation NCT06855342 | King's College Hospital NHS Trust | — |
| Not Yet Recruiting | Lung Recruitment and PEEP Effects on Intracranial Pressure in Cranial Surgery NCT06771232 | University of Chile | — |
| Recruiting | Correlation Between Noninvasive Blood Vessel Functionality Parameters and Cerebral Hemodynamics in Neurocritic NCT06511804 | University of Louisville | — |
| Not Yet Recruiting | Assessment of Optic Nerve Sheath Diameter in Preeclamptic Pregnant Women Using Ultrasonography and Anesthetic NCT06522295 | Kocaeli University | — |
| Recruiting | Effect of Lithotomy Position on Optic Nerve Sheath Diameter NCT06464419 | Başakşehir Çam & Sakura City Hospital | — |
| Completed | Evaluation of Supraclavicular Brachial Plexus Blocks at Various Volumes: Impact on Optic Nerve Sheath Diameter NCT06428461 | Pamukkale University | N/A |
| Recruiting | aSAH Treatment Based on Intraventricular ICP Monitoring: A Prospective, Multicenter, Randomized and Controlled NCT06288659 | Huashan Hospital | N/A |
| Recruiting | The Effect of a Laryngeal Mask Airway on Optic Nerve Sheath Diameter NCT06403592 | Erasmus Medical Center | — |
| Completed | Intraoperative Optic Nerve Sheath Diameter Changes After Laparoscopic Surgery NCT06209034 | Kocaeli University | N/A |
| Recruiting | Intra-operative Evaluation of the External Ventricular Drain Catheter Position With Structured Light for Patie NCT05931991 | Sunnybrook Health Sciences Centre | — |
| Unknown | SVP Detection Using Machine Learning NCT05731765 | King's College London | — |
| Recruiting | Non-Invasive and Non-Contact Intracranial Pressure Waveform Recording Using Dynamic Video Ophthalmoscopy NCT04046523 | University of Minnesota | N/A |
| Completed | Do Extraperitoneal Laparoscopic Surgeries Increase Intracranial Pressure? NCT05668208 | Konya City Hospital | N/A |
| Unknown | Optic Nerve Sheath Diameter in Pediatric Patients NCT05445271 | Kahramanmaras Sutcu Imam University | N/A |
| Unknown | Technology of Intracranial Pressure Estimation by Single-Channel EEG in Brain Disease NCT05609071 | Seoul National University Hospital | — |
| Completed | The Effect of Optic Nerve Diameter on Postoperative Cognitive Function in Laparoscopic Hysterectomy NCT05286697 | Marmara University | N/A |
| Unknown | The Effect of Interscalene Block on Intracranial Pressure NCT05434975 | Cumhuriyet University | N/A |
| Completed | Evaluation of the Effect of Trendelenburg Position Duration on Intracranial Pressure NCT06048900 | Dilek Cetinkaya | N/A |
| Unknown | The Morphology and Parameter Estimation of Cranial Ultrasound Spectrum Based on Cerebral Artery NCT04730713 | Xiangya Hospital of Central South University | — |
| Completed | Study on Optic Nerve Sheath Diameter Measurements in Prolonged Pediatric Seizures NCT06451289 | Balikesir University | — |
| Completed | Comparison of ONSD and rSO2 Measurements Between General and Spinal Anesthesia in C-Section NCT04446013 | Bagcilar Training and Research Hospital | N/A |
| Completed | The Effect of Pneumoperitoneum Timing on Intracranial Pressure in Laparoscopy NCT04224532 | Bagcilar Training and Research Hospital | N/A |
| Completed | Effect of Optıc Nerve Dıameter ın Tymphanoplasty Surgery Performed ın Lateral Head Posıtıon NCT07407972 | Bursa Yuksek Ihtisas Training and Research Hospital | N/A |
| Unknown | Multi-parameters'Change Process During Dehydration Therapy on Brain Edema Patients. NCT03828032 | Ting Li | N/A |
| Unknown | Posterior Fossa Intracranial Pressure (ICP) Measurement: Clinical Study NCT04675216 | University of Valencia | — |
| Completed | Intracranial Pressure in Monopolar and Bipolar Hysteroscopy NCT04004923 | Kanuni Sultan Suleyman Training and Research Hospital | N/A |
| Completed | Effect of Different Supralottic Airway Devicess on Optic Nerve Sheath Diameter NCT05499754 | Zonguldak Bulent Ecevit University | — |
| Unknown | Infra- and Supratentorial Neuromonitoring NCT05346471 | Medical University Innsbruck | N/A |
| Completed | Effect of Tourniquet Application on Optic Nerve Sheath Diameter NCT04758091 | Zonguldak Bulent Ecevit University | — |
| Completed | Change of Optic Nerve Sheath Diameter After Deflation of Pneumatic Tourniquet NCT03782077 | Asan Medical Center | — |
| Completed | Non-invasive Diagnostic for Assessing Elevated Intracranial Pressure NCT03418753 | Oculogica, Inc. | — |
| Completed | Noninvasive Monitoring of Cerebral Blood Flow Autoregulation NCT05170295 | Ochsner Health System | — |
| Unknown | Non-invasive Absolute Intracranial Pressure Measurement in Patients With Malignant Middle Cerebral Artery Infa NCT03221959 | Kienzler Jenny | — |
| Terminated | Ocular Screening in Children and Young Adults at Risk for Increased Intracranial Pressure NCT03286426 | Duke University | N/A |
| Unknown | Validation of Non-invasive Absolute Intracranial Pressure Monitoring NCT03227354 | Kienzler Jenny | — |
| Completed | Neuroprognostication Using Optic Nerve Sheath Diameter NCT03195881 | TriHealth Inc. | — |
| Completed | Vasopressin in Intraabdominal Pressure Elevation NCT03707054 | The Cleveland Clinic | N/A |
| Completed | non_invasive_aICP_Tumor NCT03641443 | Kantonsspital Aarau | N/A |
| Completed | Effect of Acetazolamide on Optic Nerve Sheath Diameter in Laparoscopic Donor Nephrectomies NCT03005665 | Post Graduate Institute of Medical Education and Research, Chandigarh | N/A |
| Unknown | Correlation Intraocular Pressure With Intracranial Pressure NCT03344432 | Hospital Civil de Guadalajara | — |