Clinical trials: Visual Field
Surgical Hemostasis
Comparative Study Between the Effect of Dexmedetomidine ,Midazolam or Bupivacaine Packing During FESS on Surgical Field Visualization
The goal of this interventional study is to compare the nasal packing with dexmedetomidine .midazolam or bupivacaine on surgical field visualization during FESS .
- Trial name
- FESS (Function (NCT07013955)
- Testing
- Saline, Dexmedetomidine, Midazolam
- Where
- Egypt
- Volunteers
- 144 people
- Sponsor
- Minia University
ILM Peeling
Evaluation of OCT and Visual Field Changes After Vitrectomy and ILM Peeling
To evulate changes in VF and OCT after viterctomy associated with ILM peeling.
- Trial name
- NCT04312620
- Volunteers
- 10 people
- Sponsor
- Assiut University
Glaucoma and Ocular Hypertension
Artificial Intelligence for Staging Glaucoma Severity: A Comparison With an Eye Specialist Using Visual Field Tests
The study titled "Reliability of Artificial Intelligence in Glaucoma Severity Staging Using the Brusini GSS2 System: A Longitudinal Comparative Study against Expert Assessment" aims to evaluate the diagnostic reliability and…
- Trial name
- AI-GSS2 (NCT07820709)
- Testing
- Artificial Intelligence GSS2 Staging
- Where
- Italy
- Volunteers
- 50 people
- Sponsor
- University of Salerno
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
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
Cognitive Change
PatiEnt Neuropsychological outcomeS After laseR Ablation
PatiEnt Neuropsychological outcomeS After laseR ablation
- Trial name
- PENSAR (NCT05075850)
- Testing
- Neuroblate System
- Where
- 7 sites in United States
- Volunteers
- 81 people
- Sponsor
- Monteris Medical
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
Hemianopsia
Visual Telerehabilitation in Children, Adolescents and Young Adults With Hemianopsia Consecutive to a Brain Tumour
Brain malignancies are the most common cause of death from cancer in the pediatric population and a major source of morbidity amongst survivors.
- Trial name
- HHREHAB (NCT06362434)
- Testing
- Audiovisual stimulation
- Where
- 5 sites in Canada
- Volunteers
- 50 people
- Sponsor
- University Health Network, Toronto
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
Visual Field Defect Following Cerebrovascular Accident, Hemianopia
Multisensory Telerehabilitation for Visual Field Defects
Brain injuries may cause the loss of the ability to see portions of the visual field, the so-called visual field defects (VFDs).
- Conditions
- Visual Field Defect Following Cerebrovascular Accident, Hemianopia, Brain Injuries
- Trial name
- MUST (NCT06341777)
- Testing
- Audio-visual training (AVT) telerehabilitation
- Where
- Italy
- Volunteers
- 72 people
- Sponsor
- Istituto Auxologico Italiano
Hemianopia, Homonymous, Tunnel Vision
Feasibility Tests for Various Prism Configurations for Visual Field Loss
The investigators will develop and test different configurations of high-power prisms to expand the field of vision of patients with visual field loss to assist them with obstacle detection when walking.
- Conditions
- Hemianopia, Homonymous, Tunnel Vision, Visual Field Defect, Peripheral, Visual Field Constriction Bilateral
- Trial name
- NCT04424979
- Testing
- High power prisms
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- Massachusetts Eye and Ear Infirmary
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
Macular Degeneration, Central Visual Impairment
Remapping Text in Sentence and Word Tasks to Aid Reading With Central Vision Loss
Reading performance in patients with Central Vision Loss will be measured with and without missing text being remapped to different parts of the visual field in a variety of different reading tasks.
- Trial name
- NCT07216924
- Testing
- Personalised Remapping Training, RSVP personalized remappi, Reading text in the wild with remapping
- Where
- United States
- Volunteers
- 216 people
- Sponsor
- University of Minnesota
One Eye Blindness, Blind Left Eye
Simulated Walking With Multiplexing Prism for Field Expansion in Monocular Vision
The investigators are developing an assistive device, known as multiplexing prism that expands the field of view for individuals with acquired monocular vision (loss of an eye).
- Conditions
- One Eye Blindness, Blind Left Eye, Blind Right Eye
- Trial name
- NCT06024668
- Testing
- Multiplexing Prism
- Where
- United States
- Sponsor
- Massachusetts Eye and Ear Infirmary
One Eye Blindness, Blind Left Eye
Multiplexing Prism Fitting for Field Expansion of Monocular Vision
The investigators are developing an assistive device, known as multiplexing prism that expands the field of view for individuals with acquired monocular vision (loss of an eye).
- Conditions
- One Eye Blindness, Blind Left Eye, Blind Right Eye
- Trial name
- NCT06027216
- Testing
- Multiplexing Prism
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- Massachusetts Eye and Ear Infirmary
Visual Field Defect, Peripheral
Feasibility of Visual Field Screening Apps
A visual field (VF) is a measurement of how wide an area our eyes can see when fixed onto a point. Visual field testing is one of the ways of assessing how much vision there is in each eye and how much vision might have been lost…
- Trial name
- VISA (NCT05169983)
- Testing
- iPad-Based Visual Field Test
- Where
- United Kingdom
- Volunteers
- 45 people
- Sponsor
- University Hospital Southampton NHS Foundation Trust
Chronic Ankle Instability, Ankle Ligament Injury
Dilute Epinephrine vs Tourniquet for Visualization in Ankle Arthroscopy: A RCT
This multicenter, prospective randomized controlled trial investigates the effect of dilute epinephrine irrigation versus tourniquet use on visual field clarity (VFC) during ankle arthroscopy.
- Conditions
- Chronic Ankle Instability, Ankle Ligament Injury, Ankle Arthroscopy
- Trial name
- NCT07349407
- Testing
- Epinephrine group, Tourniquet group
- Volunteers
- 88 people
- Sponsor
- Second Affiliated Hospital, Zhejiang University, School of Medicine
Primary Open Angle Glaucoma
Efficacy of Retinal Nerve Fiber Layer (RNFL) / Ganglion Cell Layer Thickness Ratio by RT-View Utilizing Spectral -Domain Technology as a Diagnostic Predictor of Glaucoma.
RT-View utilizes spectral domain technology to assess both RNFL and ganglion cell layer thickness. This study aims to correlate visual field defects in patients with glaucoma to both RNFL and ganglion cell layer thickness.
- Trial name
- NCT00773123
- Where
- South Korea
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Yonsei University