Clinical trials: Evoked Potentials, Visual
Concussion
Evaluation of an EEG Based Concussion System
This study will evaluate the accuracy of a new concussion system at detecting concussions. The investigators will be evaluating the degree to which data collected with the device agrees with a physician's determination of a…
- Trial name
- NCT03710109
- Testing
- EEG
- Where
- 2 sites in United States
- Volunteers
- 150 people
- Sponsor
- Icahn School of Medicine at Mount Sinai
Ischemic Optic Neuropathy, Optic Neuritis
Diffusion Weighted Magnetic Resonance Imaging and the Optic Nerve Neuropathy.
The aim of the project is to create a new, non-invasive and safe protocol for the early diagnosis of various types of optic neuropathies with the use of diffusion magnetic resonance imaging
- Conditions
- Ischemic Optic Neuropathy, Optic Neuritis, Compressive Optic Neuropathy, Traumatic Optic Neuropathy
- Trial name
- NCT05353413
- Testing
- Neuroimaging, VEP - visual evoked potential, Ophthalmology examination.
- Where
- Poland
- Volunteers
- 7 people, healthy volunteers welcome
- Sponsor
- Medical University of Bialystok
Preterm Less Than 32wks With IVH, WMI/PVL, Late Preterm or Term (37-42wks) With Neonatal Encephalopathy Treated With Hypothermia for HIE
Cerebral/ Cortical Visual Impairment: Screening, Identification and Outcome Prediction in Neonates
Cerebral/Cortical Visual Impairment (CVI) is the leading cause of childhood visual impairment in the United States and other industrialized countries.
- Trial name
- CVI (NCT07275021)
- Testing
- Prospective Clinical and Neurodevelopmental Data Collection
- Where
- United States
- Volunteers
- 60 people
- Sponsor
- Brigham and Women's Hospital
Hypoxic-Ischemic Encephalopathy, Neonatal Encephalopathy
Healthy Little Eyes
The purpose of this research study is to gather more information on how eye injury is related to a baby's future development and see if eye function and brain test results can be used, along with current measures, to better…
- Conditions
- Hypoxic-Ischemic Encephalopathy, Neonatal Encephalopathy, Encephalopathy
- Trial name
- NCT05971446
- Testing
- Visual Evoked Potential (VEP), Electroretinogram (ERG)
- Where
- United States
- Volunteers
- 125 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Visual Fatigue
Visual Discomfort and Reading
Reading can be an uncomfortable and difficult task for some people. Symptoms include unpleasant somatic and perceptual effects, such as eye-strain, headache, and blurred text, despite normal visual acuity.
- Trial name
- NCT00402155
- Testing
- Stress on visual discomfort
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Southern California College of Optometry at Marshall B. Ketchum University
Glioblastoma, Optic Neuropathy
Optic Neuropathy in 10 Patients With Glioblastoma Receiving Bevacizumab
Does treatment with bevacizumab (Avastin) in combination with prior or current radiotherapy lead to optic neuropathy?
- Trial name
- NCT01331616
- Testing
- Bevacizumab (Avastin)
- Sponsor
- West Penn Allegheny Health System
Multiple Sclerosis, Gait Disorders, Neurologic
Gait Pattern and Its Relation to Cognition and VEP in Multiple Sclerosis
This cross-sectional study aims to assess the pattern of gait in patients with multiple sclerosis and to evaluate its relation to cognitive function, visual evoked potentials, and radiological findings.
- Trial name
- NCT07847086
- Volunteers
- 70 people
- Sponsor
- Assiut University
Visual Neurosciences
Evaluation of Visual Parameters by Visual Evoked Potentials Captured by EEG
This project will be based on an approach that has already proven itself in the field of the development of low-level visual functions such as visual acuity, vernier acuity and contrast sensitivity (Norcia \& Tyler, 1985)…
- Trial name
- NCT05675852
- Testing
- 68-electrode electroencephalography with steady state visual evoked potentials
- Where
- Belgium
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Université Catholique de Louvain
Age Related Macular Degeneration, Retinitis Pigmentosa
Visual Activity Evoked by Infrared in Humans After Dark Adaptation
This pilot study will evaluate the visual response to infrared (IR) in humans after dark adaptation. The investigators plan to determine which wavelength and intensity the human eye is most sensitive to in healthy and color-blind…
- Conditions
- Age Related Macular Degeneration, Retinitis Pigmentosa, Congenital Stationary Night Blindness, Colorblindness
- Trial name
- NCT02909985
- Testing
- Tungsten halogen light with narrow bandpass filters
- Where
- United States
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- University of New Mexico
Glaucoma
Are There Changes in the Nerve Fiber Layer (NFL) After Lowering of Eye Pressure?
The aim of this study was to evaluate structural and functional improvement after lowering intraocular pressure (IOP) in patients with glaucoma using Spectral Domain Optical Coherence Tomography (SD-OCT), Visual Field (VF)…
- Trial name
- NCT02600403
- Testing
- Optical Coherence Tomography (OCT), Visual evoked potential (VEP), Humphrey Visual Field (HVF)
- Volunteers
- 61 people
- Sponsor
- Wills Eye
Multiple Sclerosis
Validation of Multimodal Evoked Potentials (mmEP) for Predicting Disease Progression in Multiple Sclerosis
Utility of Multimodal Evoked potentials (mmEP) for monitoring disease course and prediction of progression at different stages of Multiple Sclerosis (MS) is investigated
- Trial name
- SMSC (NCT03632473)
- Testing
- multimodal evoked potentials (mmEP)
- Where
- 3 sites in Switzerland
- Volunteers
- 29 people
- Sponsor
- University Hospital, Basel, Switzerland
Brain Tumor Adult
Effects of Intravenous Anesthesia and Balanced Anesthesia on Flash Visual Evoked Potentials
Intraoperative flash visual evoked potentials (FVEPs) could monitor visual function during neurosurgery. There are fewer reports comparing the effects of sevoflurane-propofol balanced anesthesia and propofol-based total…
- Trial name
- NCT04725032
- Testing
- Propofol, Sevoflurane
- Where
- China
- Volunteers
- 84 people
- Sponsor
- Beijing Tiantan Hospital
Glaucoma Diagnosis
How Accurately Does the Diopsys Visual Evoked Potential (VEP) Vision Testing System Detect Glaucoma?
Evaluate sensitivity and specificity of NOVA-DN visually evoked potentials (VEP) protocol and new software method (Corda) for glaucoma detection using optical coherence tomography (OCT) images to differentiate between normal…
- Trial name
- NCT02622178
- Testing
- Optical Coherence Tomography, Visual evoked potential
- Where
- United States
- Volunteers
- 136 people, healthy volunteers welcome
- Sponsor
- Wills Eye
Vision
Analysis of the Early Development of the Visual Function in Extreme Premature Infants Under 28th Weeks of Gestation
The aim of this study is to collect data on the early visual development of extreme premature infants. The method is the measurement of flash visual evoked potentials and the study population includes premature infants under the…
- Trial name
- fVEP (NCT00768586)
- Where
- Austria
- Volunteers
- 40 people
- Sponsor
- Medical University of Vienna
Amblyopia, Amblyopia, Anisometropic
Stochastic Resonance Applied to Amblyopia Training and the Plasticity of Brain
The prevalence of Taiwan's population with amblyopia is 2-5%. Amblyopia affects the daily life and learning ability. The human visual system can be developed normally with exposure of clear images on the retina, which often drive…
- Trial name
- NCT04213066
- Testing
- Portable tablet
- Volunteers
- 51 people, healthy volunteers welcome
- Sponsor
- National Cheng-Kung University Hospital
Visual Evoked Potentials
Cyclopol on Electrophysiological Monitoring During Spine Surgery: a Randomized Controlled, Noninferiority Study
Postoperative visual function injury occurs after spinal cord, neurosurgery, ophthalmology and other operations, which directly affects the postoperative quality of life of patients.
- Trial name
- NCT05617690
- Testing
- Cyclopol, Propofol
- Where
- China
- Volunteers
- 148 people
- Sponsor
- Beijing Tiantan Hospital
Visual Cortical Plasticity, Repetitive Transcranial Magnetic Stimulation
Measuring rTMS-induced Neuroplasticity With EEG Steady-state Visual-evoked Potentials
The goals of this study are to 1) use EEG steady-state visual evoked potentials as a noninvasive measure of the neuroplasticity induced by repetitive transcranial magnetic stimulation (rTMS), 2) use visual contrast detection…
- Conditions
- Visual Cortical Plasticity, Repetitive Transcranial Magnetic Stimulation, Visual Attention
- Trial name
- NCT05853939
- Testing
- repetitive transcranial magnetic stimulation
- Where
- United States
- Volunteers
- 106 people, healthy volunteers welcome
- Sponsor
- University of California, San Francisco
Myopia, Visual Rehabilitation
Exploring Perceptual Learning in Blurred Gabor Discrimination for Low-Myopic Children
This exploratory study investigates whether perceptual learning using blurred Gabor stimuli can improve uncorrected distance visual acuity in children aged 6-10 years with low myopia.
- Conditions
- Myopia, Visual Rehabilitation, Perceptual Learning
- Trial name
- NCT07107646
- Testing
- vision training system, VTS
- Where
- Taiwan
- Volunteers
- 30 people
- Sponsor
- National Taiwan University Hospital
Macular Degeneration Advanced, Macular Degeneration, Senile
Visual Rehabilitation Through Acoustic Biofeedback With Retimax Vision Trainer in Patients With Advanced Age-related Macular Degeneration
At present there are no real therapies able to improve visual performance in patients with age-related macular degeneration, atrophic type.
- Conditions
- Macular Degeneration Advanced, Macular Degeneration, Senile, Macular Degeneration, Dry, Macular Scar
- Trial name
- NCT04084587
- Testing
- Retimax Vision Trainer
- Where
- Italy
- Volunteers
- 24 people
- Sponsor
- University of Modena and Reggio Emilia
Bodily Self-Consciousness, Interoception
Hyperventilation Effects on Bodily Self-Consciousness
This study examines how voluntary fast, deep breathing (hyperventilation) affects the way healthy adults perceive their own body.
- Conditions
- Bodily Self-Consciousness, Interoception, Healthy Volunteers
- Trial name
- HYPERSELF (NCT07769710)
- Testing
- Voluntary hyperventilation (guided paced breathing), Normal spontaneous breathing (within-subject control), Synchronous respiratory-visual VR feedback
- Where
- Switzerland
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- University of Fribourg