| Not Yet Recruiting | Obstructive Sleep Apnea as a Risk Factor for Normal Tension Glaucoma and a Crucial Step in Preventing Blindnes NCT06023927 | Northwell Health | — |
| Recruiting | Transcorneal Electrical Stimulation for the Treatment of Visual Field Defects in Patients With Open-Angle Glau NCT06682962 | Okuvision GmbH | N/A |
| Completed | Effect of Netarsudil vs Brimonidine in NTG Patients on Latanoprost NCT06449352 | Westlake Eye Specialists | Phase 4 |
| Enrolling By Invitation | R&D of Non-invasive Innovative Intracranial Waves Monitoring System for Diagnostics and Treatment Monitoring o NCT06443411 | Lithuanian University of Health Sciences | — |
| Recruiting | Direct Selective Laser Trabeculoplasty in Ethnic Chinese Population NCT05902871 | BelkinVision | N/A |
| Completed | EVALUATION of CATS TONOMETER PRISM in LASIK SUBJECTS NCT06266351 | Intuor Technologies, Inc. | — |
| Recruiting | Deep Sclerectomy Versus Trabeculectomy in Normal Tension Glaucoma NCT05371977 | Helsinki University Central Hospital | N/A |
| Unknown | Study in Prostaglandin Associated Peri-orbitopathy Switching From Prostaglandin Monotherapy to Omidenepag Isop NCT05279716 | Santen Pharmaceutical Asia Pte. Ltd. | Phase 4 |
| Unknown | Water Drinking Test Study and Disc Hemorrhages in Normal Tension Glaucoma NCT05075369 | University of Manitoba | N/A |
| Unknown | Intraocular Pressure Reduction Efficacy of Rhopressa and Lumigan in Normal Tension Glaucoma NCT04981886 | Salus University | Phase 4 |
| Recruiting | Endoscopic Cyclophotocoagulation in Normal Tension Glaucoma NCT04651530 | Helsinki University Central Hospital | N/A |
| Completed | Computer-aided Diagnosis of Ocular Diseases Based on Corneal Biomechanics NCT04475900 | Technische Universität Dresden | — |
| Completed | Reproducibility of Blood Flowmetry in Human Retina Using the Nidek Laser Speckle Flowgraphy LSFG-NAVI System NCT04014933 | University of Zurich | — |
| Unknown | Measurement of the Effect of Gingko Biloba Extract on Ocular and Nailfold Blood-flow in NTG NCT03761992 | Robert Ritch, MD, LLC. | N/A |
| Recruiting | Investigation of Neurovascular Coupling in Glaucoma Patients and Healthy Subjects NCT03870230 | Medical University of Vienna | N/A |
| Completed | Peripapillary Blood Flow After Use of Anti-glaucoma Medications: An OCT Angiography Study NCT03323164 | Wills Eye | Phase 4 |
| Completed | Evaluation of PHP-201 Ophthalmic Solution in Patients With Normal Tension Glaucoma NCT03106532 | pH Pharma | Phase 2 |
| Completed | Advanced Glycation End Products as a Biomarker for Accelerated Ageing NCT02863224 | University of Plymouth | — |
| Completed | Efficacy and Safety of COMBIGAN® in Korean Patients With Primary Open Angle Glaucoma (POAG) and Normal Tension NCT02863705 | Allergan | Phase 4 |
| Completed | Pressure Difference Between Brain and Eye: a Possible Cause to Normal Tension Glaucoma. NCT02776449 | Umeå University | — |
| Terminated | Assessment of Optic Nerve Radiation in Patients With Glaucoma and Ocular Hypertension by 7 Tesla Diffusion Ten NCT01864317 | Medical University of Vienna | Phase 2 |
| Completed | Investigation of Intraocular Pressure (IOP) Reduction Efficacy of Travoprost Ophthalmic Solution in Patients W NCT01995136 | Alcon Research | Phase 4 |
| Completed | Pilot Study on Ambulatory Intraocular Pressure and Blood Pressure Monitoring in Glaucoma NCT01912599 | University of North Carolina, Chapel Hill | N/A |
| Completed | Ocular Blood Flow in Glaucoma Patients - the Leuven Eye Study NCT01840202 | Universitaire Ziekenhuizen KU Leuven | — |
| Unknown | Study on the Oxygen Saturation in Pulsating and Non-pulsating Central Retinal Veins NCT01794442 | Universitaire Ziekenhuizen KU Leuven | — |
| Completed | Study on Ocular Blood Flow and the Orbital Cerebrospinal Fluid Pressure in Glaucoma NCT01802463 | Universitaire Ziekenhuizen KU Leuven | — |
| Unknown | Correlation of Orbital Cerebrospinal Fluid Pressure and Retinal Venous Outflow in Primary Open-angle Glaucoma NCT01795014 | Universitaire Ziekenhuizen KU Leuven | — |
| Completed | Relationship Between 24-hour IOP Pattern and the 24-hour Blood Pressure Pattern in Patients With POAG NCT01769521 | Sensimed AG | N/A |
| Completed | Differences in Nerve Fiber Layer Between Patients With Normal- and High-Pressure-Glaucoma NCT01488032 | Technische Universität Dresden | — |
| Completed | Intraocular Pressure and Ocular Perfusion Pressure of Cosopt in Normal Tension Glaucoma NCT01175902 | The Catholic University of Korea | N/A |
| Completed | IOP Lowering Effects of Topical Anesthetics Used Frequently in the Ophthalmology Clinic NCT01254149 | University of Nebraska | — |
| Unknown | Efficacy and Safety Study of Combigan and 0.5% Timoptic in Normal Tension Glaucoma NCT01446497 | Seoul National University Hospital | Phase 4 |
| Completed | Autonomic Nervous System Activity and Normal Tension Glaucoma NCT01192061 | Military Institute od Medicine National Research Institute | — |
| Completed | Serum Bilirubin Levels in Normal-tension Glaucoma NCT03387306 | Trakya University | — |
| Unknown | Protective Effect of Phenytoin on Glaucoma NCT00739154 | Rabin Medical Center | — |
| Completed | A New View of Normal Tension Glaucoma: Autoregulation and Systemic Blood Pressure NCT00706056 | Weill Medical College of Cornell University | — |
| Completed | Systemic Glutathione Level in Normal Tension Glaucoma NCT00570362 | The Catholic University of Korea | — |
| Completed | Magnetic Resonance Imaging of Patients With Normal Tension Glaucoma NCT00175786 | University of British Columbia | — |
| Completed | Macular Retinoschisis and Detachment Associated With Glaucomatous Optic Neuropathy NCT01862627 | Kyorin University | — |