Clinical trials: Visual Fields
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
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
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.
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, Healthy
Quantification of Agreement and Variability of a Newly Developed Visual Field Algorithm With the Reference Standard
This study aims to compare two types of visual field test; retinal sensitivity values obtained with the reference standard Swedish Interactive Thresholding Algorithm (SITA) of the standard visual field test and with a newly…
- Trial name
- vFAST (NCT02727569)
- Testing
- New visual field algorithm with DLS, SITA algorithm, New visual field algorithm with MMDT
- Where
- United Kingdom
- Volunteers
- 110 people, healthy volunteers welcome
- Sponsor
- Moorfields Eye Hospital NHS Foundation Trust
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
Visual Field
To Compare the Octopus 311 and the Humphrey Field Analyzer 700 Series
To compare the Octopus 311 and the HFA 700 series
- Trial name
- NCT00441194
- Testing
- Visual Field (Octopus 311 and the HFA 700 series)
- Where
- United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Haag Streit USA
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
Dyslexia
Dyslexics' Visual Attention Field
dyslexia is often considered like a phonological deficit but some researches show that a visual attention (V-A) deficit can occur in dyslexia.
- Trial name
- NCT03285789
- Testing
- Passing tests in dyslexics with reduced eva, Passing tests in controls
- Where
- France
- Volunteers
- 1,460 people, healthy volunteers welcome
- Sponsor
- Hospices Civils de Lyon
Primary Open Angle Glaucoma, Ocular Hypertension
Assessment of Optic Nerve Radiation in Patients With Glaucoma and Ocular Hypertension by 7 Tesla Diffusion Tensor Imaging
Glaucoma is among the leading causes for blindness in the western world. Elevated intraocular pressure (IOP) has been identified as the most important risk factor.
- Conditions
- Primary Open Angle Glaucoma, Ocular Hypertension, Normal Tension Glaucoma
- Trial name
- NCT01864317
- Testing
- 7-Tesla MRI, Optical Coherence Tomography, Heidelberg Retina Tomography
- Where
- Austria
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
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
Stroke, Ischemic, Hemianopia, Homonymous
Statistical Learning as a Novel Intervention for Cortical Blindness
This project aims to develop a novel visual training paradigm for use in visually-intact participants and those sufferings from stroke-induced visual impairments.
- Conditions
- Stroke, Ischemic, Hemianopia, Homonymous, Hemianopsia, Occipital Lobe Infarct
- Trial name
- NCT06578117
- Testing
- Vision Training and Learning Task
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Rochester
Retinitis Pigmentosa, AMD
Rod Sensitivity in Age-related Macular Degeneration (AMD) and Retinitis Pigmentosa (RP)
A new fundus-guided microperimeter (MP-3S) has been developed by Nidek, Inc. to track the fundus of the patient and present stimuli in specific anatomically-defined locations.
- Trial name
- NCT03322930
- Testing
- Rod sensitivity
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Retina Foundation of the Southwest
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
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 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
Optic Neuritis
Effect of Phenytoin on the Ganglion Cell Layer in Patients With Optic Neuritis
Optic neuritis typically occurs in young (mean age, 32 years), female (77%) patients, and it presents as subacute monocular visual loss that develops over several days.
- Trial name
- NCT02939937
- Testing
- Phenytoin
- Where
- Iran
- Volunteers
- 71 people, healthy volunteers welcome
- Sponsor
- Tehran University of Medical Sciences
Primary Open Angle Glaucoma
Glaucoma, Visual Field Loss, and Their Association With Life Space in Older Adults
Mobility refers to a person's purposeful movement through the environment from one place to another and can be conceptualized as a continuum from bed bound (immobility) on one extreme to making excursions to distant locations on…
- Trial name
- NCT04396002
- Testing
- Life Space Questionnaire, Low Luminance Questionnaire, Contrast sensitivity under dim illumination
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Neuro-Ophthalmology
Safety and Normative Data With Neos™
The goal of this clinical study is to collect standard data for the medical device neos™. neos™ is a system that shows images and measures the resulting eye movements and pupil size. Collecting standard data involves three steps.
- Trial name
- neos-SNOW (NCT07258212)
- Where
- 3 sites in Switzerland
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- machineMD AG
Glaucoma, Suspect, Optic Nerve Hypoplasia and Abnormalities of the Central Nervous System
A More Engaging Visual Field Test to Increase Use and Reliability in Pediatrics
The majority of young children do not think that visual field (VF) testing of peripheral vision is similar to a game; therefore, it is not surprising that they have difficulty maintaining attention during VF testing and thus the…
- Conditions
- Glaucoma, Suspect, Optic Nerve Hypoplasia and Abnormalities of the Central Nervous System, Congenital Coloboma of the Optic Nerve, Optic Nerve Head Pits, Bilateral Congenital
- Trial name
- NCT02157025
- Testing
- Cartoon video fixation target and cartoon character voice audio instructions during Humphrey perimetry, Usual Care procedures during Humphrey perimetry for children
- Where
- United States
- Volunteers
- 11 people, healthy volunteers welcome
- Sponsor
- Nova Southeastern University