Clinical trials: Visual Fields
Multiple Sclerosis
Oct-A and Perimetry in Multiple Sclerosis
This study aims to assess retinal vascular density using OCT-A and correlate these parameters with visual field changes in MS patients with and without a history of ON
- Trial name
- MS (NCT07175324)
- Testing
- optical coherence tomography angiography, Visual Field Perimetry
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Assiut University
Visual Function
A Performance Study Comparing the EyeMirage (Test Device) to Standard of Care (Reference Device) in Patients 18 to 65 Years of Age Undergoing Standard Eye Examinations Such as Visual Acuity, Visual Field, Color Vision, and Self-Paced Saccade for Various Conditions
This study will assess the effectiveness and accuracy of results of a new device for eye function testing. This will be done by comparing results of four eye tests that are done through the current standard used in eye clinics…
- Trial name
- NCT06908967
- Testing
- EyeMirage device
- Where
- 4 sites in Canada
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- Neuroptek Corporation Inc.
Retinitis Pigmentosa, Glaucoma
Evaluation of Objective Perimetry Using Pupillometer
Objective perimetry can better monitor visual field defects in RP and Glaucoma patients than conventional subjective perimetry.The PLR ( Pupil Light Reflex ) of the short and long wave ratio should be significantly higher in…
- Conditions
- Retinitis Pigmentosa, Glaucoma, Visual Field
- Trial name
- NCT01021982
- Where
- Israel
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Sheba Medical Center
Visual Field Defect, Peripheral
Establishing a Normative Database in Pediatric Population of the Head-mounted visuALL Field Analyzer
The goal of this study is to determine reference values of the VisuALL Field Test in pediatric population. Standard Automatic Perimetry (SAP) is the gold standard test for the evaluation of different diseases of the visual…
- Trial name
- NCT04175444
- Testing
- VisuALL Field Analyzer, Humphrey Field Analyzer
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University Medical Center
Glaucoma
Does Lowering Eye Pressure Affect the Results Obtained From Objective Visual Field Testing?
A study to determine whether a patient's range of vision test results improve after their eye pressure is lowered by 30% or more by testing on a new machine called the Accumap and how to learn how much the Accumap's results…
- Trial name
- NCT00799994
- Where
- United States
- Volunteers
- 23 people, healthy volunteers welcome
- Sponsor
- Wills Eye
Pigmentary Retinopathy
Impact of Visual Field Restriction on Visual Exploration
To communicate with the observer and guide his gaze on the canvas, painters have developed different stylistic processes that artists, in the manner of scientists, have acquired on the functioning of human visual perception.
- Trial name
- REVE (NCT04360291)
- Testing
- Eye tracker
- Where
- France
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts
Glaucoma
Feasibility of Visual Field Testing With a Virtual Reality Headset
This study aim to determine the feasibility of using a virtual reality (VR) headset (HTC Vive) to test the visual field. The VR headset test will be compared to a conventional visual field test, using the Humphrey Field Analyzer.
- Trial name
- NCT03748654
- Testing
- Visual Field Testing
- Where
- Canada
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Brennan Eadie
Glaucoma
Macular Damage in Early Glaucoma and Progression
Glaucoma is the leading cause of irreversible blindness worldwide. This study aims to test a new method that may allow earlier diagnosis of glaucoma and better ways to monitor if it is getting worse.
- Trial name
- NCT02547740
- Where
- United States
- Volunteers
- 260 people, healthy volunteers welcome
- Sponsor
- Columbia University
Glaucoma, Diagnostic Self-evaluation
Development and Evaluation of a Self-administered/Assisted Visual Field Screening Tool for Glaucoma
This project aims to evaluate a self-administered screening test for glaucoma, the second largest cause of blindness in the western world.
- Trial name
- NCT02162043
- Where
- United Kingdom
- Volunteers
- 168 people, healthy volunteers welcome
- Sponsor
- University of Manchester
Healthy
tFUS Induced Transient Scotoma for Individual Dosing
The purposes of this research study is to: 1. Develop a technique of transcranial Focused Ultrasound Stimulation (tFUS) where meaningful effects on the brain can be easily measured. 2.
- Trial name
- NCT06426498
- Testing
- Brainsonix Bx Pulsar machine tFUS
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
Normal Physiology, Stroke
Effects of Prism Adaption and rTMS on Brain Connectivity and Visual Representation
Background: After a stroke, the balance between the two halves of the brain can be lost. This may cause people to lose the ability to perceive a side of space. This is called neglect.
- Trial name
- NCT02911129
- Where
- United States
- Volunteers
- 74 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Visual Pathway Disorder, Glaucoma
Assessment of Visual Function in Ophthalmic Disorders Using Virtual Visual Field Analysis
1. To evaluate the accuracy of virtual visual field (VVF) headsets equipped the standard visual field software in its ability to assess visual function in various retinal, glaucoma and neuro-ophthalmic disorders by comparing…
- Conditions
- Visual Pathway Disorder, Glaucoma, Retinal Disease
- Trial name
- proVVF (NCT04110015)
- Testing
- virtual visual field
- Where
- United States
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- New York City Health and Hospitals Corporation
Pain, Hysterectomy
Ultravision Visual Clearing System in Laparoscopic Hysterectomy and Myomectomy
This is a prospective blinded, randomized controlled study. The study will include three study arms: Patients undergoing laparoscopic hysterectomies will be randomized to one of either "Ultravision" (study arm 1) or "no…
- Conditions
- Pain, Hysterectomy, Myomectomy
- Trial name
- NCT03634306
- Testing
- Ultravision System, Laparoscopic Hysterectomy
- Where
- United States
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Mercy Research
Hemianopsia, Homonymous
Testing of a Functional Outcome Measure for Those With Visual Field Defects
This study is designed in two Phases. In phase 1, the Functional Outcome Measure will be tested to determine its validity and reliability in three populations, subjects that have not had a stroke and have no visual field defect…
- Trial name
- FOM (NCT00731796)
- Testing
- Functional Outcome Measure
- Where
- 3 sites in United States
- Volunteers
- 190 people, healthy volunteers welcome
- Sponsor
- NovaVision, Inc.
Stroke, Ischemic, Quadrantanopia
Vision Loss Impact on Navigation in Virtual Reality
The purpose of this research is to better understand the impact of cortically-induced blindness (CB) and the compensatory strategies subjects with this condition may develop on naturalistic behaviors, specifically, driving.
- Conditions
- Stroke, Ischemic, Quadrantanopia, Hemianopsia, Homonymous, Hemianopia, Homonymous
- Trial name
- NCT06047717
- Testing
- Virtual Reality Driving Task
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of Rochester
Other Complications of Surgical and Medical Procedures
Comparison of the Effects of Nicardipine and Remifentanil on Surgical Visual Field
In the present study, the purpose was to compare the effects of Nicardipine and Remifentanil on surgical visual field and hemodynamic parameters in microscopic tympanomastoidectomy cases with Controlled Hypotension (CH).
- Trial name
- NCT06130527
- Testing
- Nicardipine, Remifentanil
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Erol Karaaslan
Hypotension,Controlled
Correlation Analysis of the Effects of Management Pressure Goals and Control Volume Goals in Patients in Spinal Surgery
The investigators study 160 patients undergoing spinal surgery.Participants will be randomly divided into study group and control group.The study group will receive controlled hypotension by nitroglycerin and be divided into 3…
- Trial name
- NCT03917004
- Testing
- Nitroglycerin
- Where
- China
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- Liang Bing
Glaucoma, Intraocular Pressure
Screening for Glaucoma in Namil Area, South Korea
The purpose of this study is to study the prevalence of glaucoma in Korea, the investigators selected Namil area in Geumsan city, located in central Korea.
- Conditions
- Glaucoma, Intraocular Pressure, Optic Nerve Head, Visual Field
- Trial name
- NCT00727168
- Where
- South Korea
- Volunteers
- 1,532 people, healthy volunteers welcome
- Sponsor
- Korean Glaucoma Society
Glaucoma
Assessment of Ability Related to Vision
To determine the clinical usefulness of a refined third-generation instrument - The Assessment of Ability Related to Vision (AARV) in establishing the amount of disability, charting the detrimental effects of progressive disease…
- Trial name
- AARV (NCT01027312)
- Volunteers
- 121 people, healthy volunteers welcome
- Sponsor
- Wills Eye
Cortical Blindness, Stroke Ischemic
Mechanisms of Visual Restoration After Occipital Stroke
This project will collect brain imaging data to quantify the effects of early visual cortex damage and visual training interventions on the structure and function of the residual visual system.
- Conditions
- Cortical Blindness, Stroke Ischemic, Vision Loss Partial, Visual Fields Hemianopsia
- Trial name
- MOVROS (NCT07134777)
- Testing
- MRI
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University of Rochester