Clinical trials: Visual Field
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
Diplopia, Binocular Vision Suppression
Understanding Visual Confusion Using Stereoscopic Displays
In this research study we want to test how people understand a visual scene when the same image is presented to both the eyes, but portions of these images are altered in terms of contrast, depth or in some cases motion.
- Conditions
- Diplopia, Binocular Vision Suppression, Binocular; Fusion, With Defective Stereopsis, Monocular Diplopia
- Trial name
- NCT04957745
- Testing
- Binocular visual confusion (unilateral opaque), Unilateral monocular visual confusion (unilateral see-through), Bilateral monocular visual confusion (bilateral see-through)
- Where
- United States
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- Massachusetts Eye and Ear Infirmary
Healthy Skin
Visualization of Topical Zoryve vs. Vehicle Using Line Field Optical Coherence Tomography in Healthy Skin
The goal of this study is to visualize the deposition of topical 0.3% roflumilast (Zoryve) compared to vehicle using Line-Field Optical Coherence Tomography (LC-OCT) in vivo in healthy skin.
- Trial name
- NCT06440473
- Testing
- Roflumilast, Vehicle (Roflumilast 0.3% vehicle cream)
- Where
- United States
- Volunteers
- 3 people, healthy volunteers welcome
- Sponsor
- Rao Dermatology
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
Homonymous Hemianopia
Assessment of Homonymous Visual Loss and Its Impact on Visual Exploration, Activities of Daily Living (ADL) and Quality of Life (QoL)
The purpose of this explorative study, targeting subjects with homonymous visual field loss, is threefold: (i) to identify the perimetric / psychophysical method, that is most closely correlated with an individually assessed…
- Trial name
- Hemi-Drive (NCT01372332)
- Where
- Germany
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University Hospital Tuebingen
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
Presbyopia, Pseudophakia
Visual Outcomes After Extended Depth of Focus Intraocular Lens Implantation With and Without Digital Assistance
The primary objective of this study is to compare the postoperative visual acuity curves of patients that underwent one of the following surgical procedures: Insertion of an extended depth of focus intraocular lens with digital…
- Conditions
- Presbyopia, Pseudophakia, Cataract, Refractive Errors
- Trial name
- NCT06460389
- Testing
- Visual Acuity Assessment
- Where
- Greece
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Democritus University of Thrace
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