Clinical trials: Optic Disk
Optic Disk, Magnetic Resonance Imaging
Precise High Resolution MRI to Increase Accuracy and Gain Confidence to Diagnose Patients With Optic Disc Edema
The presence of optic disc swelling at the fundus is a non-specific clinical sign that can occur in many ophthalmologic, neuro-ophthalmologic or encephalic pathologies.
- Trial name
- PAGODE (NCT04448613)
- Testing
- MRI
- Where
- France
- Volunteers
- 197 people
- Sponsor
- Fondation Ophtalmologique Adolphe de Rothschild
Glaucoma
To Evaluate the Effect of Ginkgo Biloba Extract on Optic Nerve Head Perfusion Examined Using OCTA
Glaucoma is defined as progressive neuropathy of the optic nerve. It is an important cause of irreversible blindness worldwide. Lowering the intraocular pressure is the only proven treatment for this neurodegenerative disease.
- Trial name
- GBE (NCT04846179)
- Testing
- Ginkgo biloba extract
- Where
- Canada
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Nova Scotia Health Authority
Glaucoma
The Effect of Body Posture on Intraocular Pressure in Progressive Glaucoma
Glaucoma is a condition where the optic nerve (the nerve responsible for sight) shows progressive damage with characteristic loss of visual field.
- Trial name
- NCT01351779
- Where
- Canada
- Volunteers
- 20 people
- Sponsor
- University of Toronto
Healthy
Role of Nitric Oxide in Optic Nerve Head Blood Flow Regulation During Experimental Increase of Intraocular Pressure in Healthy Humans
Autoregulation is defined as the ability of a vascular bed to adapt its vascular resistance to changes in perfusion pressure. In the eye, several studies have reported that retinal blood flow is autoregulated over a wide range of…
- Trial name
- NCT00914394
- Testing
- NG-monomethyl-L-arginine (L-NMMA), Phenylephrine, Laser Doppler Flowmetry
- Where
- Austria
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Persistent Epithelial Defect
A Study to Investigate the Safety and Clinical Effect of Nexagon® to Treat Persistent Epithelial Defects
The purpose of this study is to evaluate the efficacy and safety of Nexagon® in subjects with Persistent Epithelial Defects (PED) originally caused by chemical burns.
- Trial name
- NCT00821561
- Testing
- Nexagon®, Nexagon® vehicle
- Volunteers
- 90 people
- Sponsor
- OcuNexus Therapeutics, Inc.
Fabry Disease
Clinical Investigation on the Blood Oxygenation at the Optic Nerve Head in Fabry Patients
This study aimed to evaluate blood oxygenation at the optic nerve head in relation with visual field losses observed in many Fabry patients. Data collected allowed to evaluate if there is a link between these two entities.
- Trial name
- NCT02023086
- Testing
- Contrast sensitivity measurement, Slit Lamp assessment and intra-ocular pressure measurement, Visual field testing
- Where
- Canada
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- Université de Montréal
Sjogren's Disease
Evaluation of Ocular Surface Inflammatory Mediators Effected by Lotemax
The purpose of this study is to evaluate the effects of an anti-inflammatory drug (Lotemax®) on the surface of the eye and tear film (a film that coats the eye which is made up of oil and water).
- Trial name
- NCT02322528
- Testing
- Administration of Lotemax
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- University of Rochester
Idiopathic Intracranial Hypertension
Safety and Effectiveness of 11b-Hydroxysteroid Dehydrogenase Type 1 Inhibitor (AZD4017) to Treat Idiopathic Intracranial Hypertension.
Assessing the safety and effectiveness of a 11-βhydroxysteroid dehydrogenase type 1 inhibitor (AZD4017), in a placebo controlled trial, in acute idiopathic intracranial hypertension (IIH) IIH is a condition of young, overweight…
- Trial name
- IIH:DT (NCT02017444)
- Testing
- AZD4017
- Where
- United Kingdom
- Volunteers
- 31 people
- Sponsor
- University of Birmingham
Healthy
Regulation of Optic Nerve Head Blood Flow During Combined Changes in Intraocular Pressure and Arterial Blood Pressure
Autoregulation is the ability of a vascular bed to maintain blood flow despite changes in perfusion pressure. The existence of an effective autoregulation in the optic nerve head (ONH) circulation has been shown in animals and…
- Trial name
- NCT00914992
- Testing
- Suction cup application, Squatting
- Where
- Austria
- Volunteers
- healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Diabetic Retinopathy
Effect of Laser Treatment for Diabetic Retinopathy on the Optic Disc Topography
This study analyzed diabetic patients without evidence of glaucoma who underwent panretinal photocoagulation to determine the effect on optic disc topographic parameters in non-glaucomatous patients with proliferative diabetic…
- Trial name
- NCT03476967
- Testing
- Panretinal photocoagulation
- Volunteers
- 30 people
- Sponsor
- University of Sao Paulo General Hospital
Glaucoma
Spectralis OCT Repeatability and Reproducibility Study
This single-center, prospective, interventional clinical study is conducted to evaluate the repeatability and reproducibility of structural parameters of the optic nerve head, the peripapillary retinal nerve fiber layer, and the…
- Trial name
- S-2013-1 (NCT02209077)
- Testing
- OCT performed to collect data from the back of the eye
- Where
- Canada
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Heidelberg Engineering GmbH
Neuro-Ophthalmology, Optic Neuropathies
Optic Nerve Head Evaluation Through Multimodal Blood Flow Analysis: a Prospective Observational, Multi-center Study
OCT-A and eco-colordoppler are technologies which enable optic nerve head (ONH) blood perfusion detection. The aim of the study is to assess ONH vascular and structural components in optic neuropathies with and without ONH edema…
- Conditions
- Neuro-Ophthalmology, Optic Neuropathies, Optic Atrophy, Hereditary, Leber, Optic Neuropathy, Anterior Ischemic
- Trial name
- FlowONH (NCT07075887)
- Volunteers
- 70 people
- Sponsor
- Barboni
Optic Disc Swelling
Antiacne Medications Pseudotumor Cerebri
The exact incidence of optic disc swelling and idiopathic intracranial hypertension in patients using antiacne medication is not known so far.
- Trial name
- AAMPTC (NCT02149615)
- Testing
- Retinal nerve fibre layer measurement
- Where
- Switzerland
- Volunteers
- 310 people, healthy volunteers welcome
- Sponsor
- University of Zurich
Primary Open Angle Glaucoma
Correlation of Optic Disk Morphology and Ocular Perfusion Parameters in Patients With Primary Open Angle Glaucoma
Glaucoma is one of the most common causes of blindness in the industrialized nations. For a long time glaucoma has been defined as a disease in which high intraocular pressure (IOP) leads to irreversible optic disc damage and…
- Trial name
- NCT00803504
- Testing
- ocular blood flow measurement
- Where
- Austria
- Volunteers
- 103 people
- Sponsor
- Medical University of Vienna
Non-Proliferative Diabetic Retinopathy, Proliferative Diabetic Retinopathy New Vessels on Disc
The Effect of Combination of Vitamin A, Vitamin E, Sodium Hyaluronate 0.15% Eye Drop Compared With Sodium Hyaluronate 0.1% Eye Drop to Tear Film Stability and Conjunctival Goblet Cells Density in Patient With Non-Proliferative Diabetic Retinopathy (NPDR), and Proliferative Diabetic Retinopathy (PDR)
Commonly know that one of the complications caused by Diabetes Mellitus (DM) is microangiopathy. Microangiopathy in the long term may lead to neuropathy of the corneal nerves.
- Conditions
- Non-Proliferative Diabetic Retinopathy, Proliferative Diabetic Retinopathy New Vessels on Disc, Dry Eye Syndromes
- Trial name
- NCT04000789
- Testing
- Sodium Hyaluronate, Vitamin A, Vitamin E
- Volunteers
- 96 people
- Sponsor
- Dr Cipto Mangunkusumo General Hospital
Glaucoma, Open-Angle
A Comparison of the Effect of Dorzolamide and Timolol on Optic Disk Blood Flow in Patients With Open Angle Glaucoma
Glaucoma is one of the most common causes of blindness in the industrialized nations. For a long time glaucoma has been defined as a disease in which high intraocular pressure (IOP) leads to irreversible optic disk damage and…
- Trial name
- NCT00991822
- Testing
- Dorzolamide 2%, Timolol 0.5%
- Where
- Austria
- Volunteers
- 160 people
- Sponsor
- Medical University of Vienna
Normal Healthy Subjects With No Known Ocular Diseases, Glaucomatous Eyes
Clinical Study of the Optic Disc Parameters
Assess the repeatability and agreement of the Optic Disc Parameters, Retinal Nerve Fiber Layer (RNFL) Thickness, and Full Retinal Thickness between the Maestro and iVue OCT devices
- Conditions
- Normal Healthy Subjects With No Known Ocular Diseases, Glaucomatous Eyes, Eyes With Retinal Diseases
- Trial name
- NCT02277119
- Testing
- Maestro, iVue
- Where
- 2 sites in United States
- Volunteers
- 109 people, healthy volunteers welcome
- Sponsor
- Topcon Medical Systems, Inc.
Optic Disk Drusen
Identification and Verification of Candidate Genes Responsible for Optic Disc Drusen Development
The goal of this observational study is to learn about the genetic background for the development of optic disc drusen. The main question is: Can one or more candidate genes be found? Participants will have a blood sample taken…
- Trial name
- GENODD (NCT05736237)
- Testing
- Whole exome sequencing
- Where
- Denmark
- Volunteers
- 20 people
- Sponsor
- Copenhagen University Hospital at Herlev
Healthy
Role of Endothelin-1 in Optic Nerve Head Blood Flow Regulation During Isometric Exercise in Healthy Humans
Autoregulation is defined as the ability of a vascular bed to adapt its vascular resistance to changes in perfusion pressure. In the eye, several studies have reported that retinal blood flow is autoregulated over a wide range of…
- Trial name
- NCT00915070
- Testing
- BQ-123, Physiological saline solution, Laser Doppler Flowmetry
- Where
- Austria
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Open Angle Glaucoma
Does the Optic Disc Grading Done Visually by Your Doctor Agree With Optic Nerve Testing Which is Done by Machines?
The purpose of this study is to determine how well the DDLS (Disc Damage Likelihood Scale) (which is a method used by the eye doctor to evaluate how healthy the optic nerve is) measures up to the standard glaucoma tests: OCT…
- Trial name
- NCT00430287
- Where
- United States
- Volunteers
- 101 people, healthy volunteers welcome
- Sponsor
- Wills Eye