Clinical trials: Visualization
Octagenerian Population Undergoing Hip Surgeries
Effects of Continuous Versus Single Dose Spinal Anesthesia in Octagenerians Undergoing Hip Surgery
Continuous spinal anesthesia (CSA) is an anesthetic technique that offers several clinical advantages for anesthesia and analgesia in elderly patients.
- Trial name
- NCT05418374
- Testing
- Continous Spinal Anestheisa
- Where
- Egypt
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
Visual Acuity
Influence of Lens Design on Particulate Exchange in the Post-lens Tear Film
This is a 5-visit, controlled, bilateral, randomized, subject-masked, crossover (4 treatments x 4 period), non-dispensing study.
- Trial name
- NCT03782571
- Testing
- etafilcon a Test 1, etafilcon A Test 2, etafilcon A Test 3
- Where
- United Kingdom
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Urethral Diseases
DirectVision for Urinary Catheterization
The Center for Disease Control and Prevention (CDC) reports that one in four patients hospitalized in the United States is catheterized to void the bladder or monitor urinary output. In the male population, Dr.
- Trial name
- NCT03066999
- Testing
- Cystoscopy, DirectVision
- Where
- United States
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- The Pur Clinic
Amputation
Does Walking Performance Improve When Veterans With Leg Amputations Are Given Visual Feedback?
Previous studies suggest that Veterans with below the knee amputation using passive-elastic or powered prostheses have impaired physical function, which could increase the risk of osteoarthritis, leg/back pain, and…
- Trial name
- NCT03974945
- Testing
- Passive-elastic prosthetic foot, Powered ankle-foot prosthesis
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development
Vision Disorders, Refractive Errors
Rapid Computerized Visual Acuity Test
A novel computerized visual acuity test was developed and tested on both healthy persons and patients with ocular conditions. Visual acuity outcomes of the computerized test will be compared to the Early Treatment Diabetic…
- Conditions
- Vision Disorders, Refractive Errors, Retinal Disease, Cataract
- Trial name
- NCT05447845
- Testing
- Computerized visual acuity assessment program
- Where
- Israel
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Rambam Health Care Campus
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
Retinitis Pigmentosa, Visual Impairment
Environmental Localization Mapping and Guidance for Visual Prosthesis Users
This study is driven by the hypothesis that independent navigation by blind users of visual prosthetic devices can be greatly aided by use of an autonomous navigational aid that provides information about the environment and…
- Conditions
- Retinitis Pigmentosa, Visual Impairment, Visual Prosthesis
- Trial name
- SLAM (NCT04359108)
- Testing
- Navigation system mode: Argus Vision, Navigation system mode: Depth Vision, Navigation system mode: Depth Vision with Haptic / Audio
- Where
- 2 sites in United States
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins University
Visual Acuity
Evaluation of Astigmatic Contact Lenses
Randomized, double-masked, 5-visit, bilateral dispensing, parallel group study to demonstrate that the investigational contact lens meets the design requirements related to corneal staining, lens fit, visual acuity and rotational…
- Trial name
- NCT03086447
- Testing
- Investigational Contact Lens, Marketed Contact Lens
- Where
- 17 sites in United States
- Volunteers
- 267 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Childhood Obesity
Brain Activation and Satiety in Children: Functional Magnetic Resonance Imaging
BASIC fMRI is a prospective single center intervention trial using fMRI imaging in 9-11 year old obese male and females pre and post family-based behavioral treatment of 24 weeks duration to determine the relationship between…
- Trial name
- BASIC-FMRI (NCT02484976)
- Testing
- Family Based Behavioral Treatment
- Where
- United States
- Volunteers
- 81 people, healthy volunteers welcome
- Sponsor
- Seattle Children's Hospital
Glaucoma, Optic Neuropathy, Ischemic
Neural Conduction Along the Visual Pathways After Oral Treatment With Citicoline in Patients With Optic Nerve Diseases
In the management of glaucoma, as for as in other optic nerve diseases, an important goal of ophthalmologists is represented by the possibility of influencing visual function.
- Conditions
- Glaucoma, Optic Neuropathy, Ischemic, Visual Pathway Disorder, Optic Nerve
- Trial name
- NCT00404729
- Testing
- Citicoline
- Where
- 2 sites in Italy
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Fondazione G.B. Bietti, IRCCS
Cataract
Visual Function After Implantation of Bilateral AcrySof ReSTOR Aspheric +3
A prospective evaluation of the visual parameters in a series of patients bilaterally implanted with AcrySof ReSTOR +3 Intraocular Lens (IOL).
- Trial name
- NCT00719732
- Testing
- ReSTOR
- Where
- United States
- Volunteers
- 218 people, healthy volunteers welcome
- Sponsor
- Alcon Research
Visual Perception, Attention
Effects of Acetylcholine and Attention on Visual Spatial Representations in the Brain
This study in, healthy human subjects using fMRI and MRS (magnetic resonance spectroscopy) characterizes, how attention and acetylcholine affect visual perception and the brain's representation of the visual environment.
- Conditions
- Visual Perception, Attention, Information Processing, Cholinergic System
- Trial name
- NCT05003063
- Testing
- Donepzil
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University of California, Berkeley
Visual Acuity
Non-Invasive Assessment of Contact Lens Performance During Use of a Digital Display
This is a two-arm, open-label, bilateral dispensing clinical investigation. Eligible subjects will proceed to either a low-sphere or high-sphere arm based on refraction measurements in the baseline assessment.
- Trial name
- NCT04869189
- Testing
- JJVC Marketed Contact Lens
- Where
- United Kingdom
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Cochlear Implants
Pitch Perception and Memory: Deficits and Training
Pitch perception and memory are central in auditory cognition, in particular for sound source segregation and recognition, speech prosody and music processing.
- Trial name
- Pitch_Train (NCT03707691)
- Testing
- Listening tests. Pitch training protocol, visuo-spatial training protocol, EEG/MEG/MRI recordings.
- Where
- France
- Volunteers
- 960 people, healthy volunteers welcome
- Sponsor
- Hospices Civils de Lyon
Visual Acuity, Refractive Errors
Pre-symptomatic Screening of Visual Acuity in Pre-school Students
The present research process is a prospective, non-interventional clinical study that will be conducted -under the auspices of the Democritus University of Thrace (DUTH)- in the pre-school students of the city of Alexandroupolis…
- Conditions
- Visual Acuity, Refractive Errors, Low Vision, Vision Disorders
- Trial name
- NCT05835193
- Testing
- Diagnostic Test: Distance Visual Acuity Examination
- Where
- Greece
- Volunteers
- 1,098 people, healthy volunteers welcome
- Sponsor
- Democritus University of Thrace
Cognitive Enhancement
Transcranial Focused Ultrasound Stimulation to Enhance Cognition in Healthy Participants
This study examines the impact of theta-burst transcranial focused ultrasound stimulation (tFUS) on cognitive performance in healthy participants, specifically focusing on both acute and post-stimulation effects on visual working…
- Trial name
- NCT06829368
- Testing
- Transcranial Focused Ultrasound Stimulation
- Where
- United Kingdom
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- University of Nottingham
Migraine
Does tDCS is Effective in the Prophylactic Treatment of Migraine
Migraine has been described as one of the most common neurological diseases, with high social and economic impact. Despite the high prevalence, the pathophysiology of migraine is still unknown, several studies have been developed…
- Trial name
- NCT01886274
- Testing
- Transcranial direct current stimulation
- Where
- Brazil
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Universidade Federal de Pernambuco
Stomach Diseases, Small Intestine Disease
Magnetically Controlled Capsule Endoscopy in Visualization of the UGI and Small Intestine
In this study, we retrospectively analyzed the videos of combined upper digestive tract and small intestine examination under MCE, so as to clarify the feasibility and diagnostic efficacy of MCE in one-time examination of the…
- Trial name
- NCT05069233
- Testing
- UGI+SB
- Where
- China
- Volunteers
- 593 people, healthy volunteers welcome
- Sponsor
- Changhai Hospital
Biomechanical Phenomena
Lumbopelvic Movement Control: Effect of Injury History, and the Role of Cortical Control and Its Practical Application 1
Lumbopelvic movement control is crucial for movement stability during weight loading training, and also an important risk factor for the occurrence and recurrence of low back pain (LBP).
- Trial name
- NCT04786717
- Testing
- core muscle training, movement control training, combined imagery and movement control training
- Where
- Taiwan
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- National Yang Ming Chiao Tung University
Presbyopia
Trial of the PresVIEW Implant for the Improvement of Near Vision in Patients With Presbyopia
The primary objective of this study is to evaluate the safety and effectiveness of the PresVIEW™ Scleral Implant (PSI) for the improvement of near visual acuity in presbyopic patients.
- Trial name
- NCT01166568
- Testing
- PresVIEW Scleral Implants
- Where
- 14 sites in United States
- Volunteers
- 337 people, healthy volunteers welcome
- Sponsor
- VisDura, Inc.
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