Clinical trials: Visualization
Chromatic Adaptation
Visual Health Evaluation of Natural Color Display Technology
Study on visual fatigue and visual function under changing ambient light color temperature by natural color mode: The influence of electronic display devices on visual fatigue of human eyes is the main evaluation index and the…
- Trial name
- NCT06394102
- Testing
- The automatic color temperature adjustment mode equipped on terminal display devices can reduce the discrepancy between the color temperature of the device and the ambient light.
- Where
- China
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Beijing Tongren Hospital
Nausea and Vomiting in Pregnancy
Guided Imagery for Nausea and Well-Being in Pregnant Women
This study aims to evaluate the effect of a guided imagery-based psychoeducational intervention on nausea and vomiting severity and psychological well-being in pregnant women.
- Trial name
- GI-PREG (NCT07544095)
- Testing
- Guided Imagery-Based Psychoeducation
- Where
- Turkey (Türkiye)
- Volunteers
- 106 people, healthy volunteers welcome
- Sponsor
- Inonu University
Dry Eye
Bilateral, Masked Comparison of PEG-400 Based Artificial Tear and Systane for the Treatment of Dry Eye Signs, Symptoms and Visual Quality
To evaluate and compare the effects of PEG-400 based artificial tear and Systane tears in mild-moderate dry eye patients. TBUT, Visual impact and subjective evaluations will be assessed in this month long trial.
- Trial name
- NCT00622037
- Testing
- PEG-400 based artificial tear, Systane
- Where
- United States
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Bp Consulting, Inc
Visual Developmental Disorders
Tertiary Care for Visual Developmental Disorders in Pre-school Children
Visual development disorders are major public health problems among children especially in China. How to find an effective and economic way to manage the larger number of children in China remains exploring.
- Trial name
- NCT03251456
- Testing
- Tertiary care, Usual Care
- Where
- China
- Volunteers
- 1,114 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Visual Impairment, Age-Related Macular Degeneration
A Virtual Reality Platform Simulating Visual Impairment for Testing of Electronic Travel Aids and Performing Orientation and Mobility Training
In this study, the study team utilize virtual reality (VR) to simulate visual impairments of different types and severity in healthy subjects.
- Conditions
- Visual Impairment, Age-Related Macular Degeneration, Diabetic Retinopathy, Glaucoma
- Trial name
- NCT05135195
- Testing
- In-House Developed VR Platform - AMD, DR, Glaucoma, In-House Developed VR Platform - Glaucoma
- Where
- United States
- Volunteers
- 98 people, healthy volunteers welcome
- Sponsor
- NYU Langone Health
Brain Injuries, Brain Injuries, Traumatic
Visual Feedback in Lower Limb Rehabilitation
Severe Acquired Brain Injury (sABI) is defined as "an encephalic impairment that occurs after birth and is not related to a congenital or degenerative disease.
- Conditions
- Brain Injuries, Brain Injuries, Traumatic, Brain Injuries, Vascular
- Trial name
- NCT05179330
- Testing
- OMEGO®
- Where
- Italy
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS
Visual Acuity
Visual Outcomes of a Segmental Refractive Multifocal Intraocular Lens
To evaluate visual outcomes of a segmental refractive multifocal intraocular lens (IOL) after cataract surgery.
- Trial name
- NCT03452969
- Testing
- Implantation of multifocal intraocular lens
- Where
- Germany
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- University Clinic Frankfurt
Visual Impairment
Cell Phone Application for Vision Assessment
The purpose of this study is to evaluate how visual acuity assessed with Peek Acuity (a cell phone application to check visual acuity) among preschool and school-aged children 3 to less than18 years of age (1) compares to the…
- Trial name
- NCT03212222
- Testing
- Peek Acuity, Standard Visual Screening
- Where
- United States
- Volunteers
- 111 people, healthy volunteers welcome
- Sponsor
- Duke University
Growth Retardation, Growth Acceleration
Visual Interpretation of Neonatal Growth Charts
Simulated growth data will be shown to clinicians in two formats - (1) as weight vs.age charts, (2) as weight Z-score vs. age charts. Clinicians will be asked to identify whether growth is too fast, too slow, or normal.
- Trial name
- NCT02403739
- Testing
- No Intervention
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of California, Davis
Idiopathic Intracranial Hypertension
Idiopathic Intracranial Hypertension Treatment Trial
Idiopathic intracranial hypertension (IIH), also called pseudotumor cerebri, is a disorder of elevated intracranial pressure of unknown cause [Corbett, et al., 1982; Wall, et al., 1991].
- Trial name
- IIHTT (NCT01003639)
- Testing
- Acetazolamide, Formal weight loss counselling program
- Where
- 41 sites in United States, Canada
- Volunteers
- 165 people, healthy volunteers welcome
- Sponsor
- St. Luke's-Roosevelt Hospital Center
Healthy
Oral Vasopressin Modulates Neural Responses to Looming Visual Stimuli: An Eye-tracking Study
The main aim of the present study is to investigate the effects of orally administered vasopressin (AVP) on the perception of time-to-collision of threatening and non-threatening stimuli by combining a validated looming fear…
- Trial name
- NCT06329063
- Testing
- Vasopressin
- Where
- China
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- University of Electronic Science and Technology of China
Premature Retinopathy, Visual Impairment
Evaluation of Visual - Motor Development in Children With Retinopathy of Prematurity
The aim of this study was to investigate the eye structure, visual impairment, visual motor development and motor coordination of children between 2-6 ages that had applied to diod laser photocoagulation and intravitreal anti …
- Conditions
- Premature Retinopathy, Visual Impairment, Motor Delay
- Trial name
- NCT03865134
- Testing
- Snellen Test, Autorefractometer, Titmus Stereo Fly Test
- Where
- Turkey (Türkiye)
- Volunteers
- 69 people, healthy volunteers welcome
- Sponsor
- Istanbul Medipol University Hospital
Dental Caries, Teeth Loss
The Effect of Bitewing Radiography on Outcomes and Costs of Treating Caries in Permanent Teeth
Dentists commonly use bitewing radiographs (dental X-rays) together with a visual-tactile (clinical) examination to detect cavities between the back teeth.
- Conditions
- Dental Caries, Teeth Loss, Necrosis of Pulp, Irreversible Pulpitis
- Trial name
- BROCC (NCT07882693)
- Testing
- Visual-tactile caries examination, Visual-tactile caries examination and bilateral bitewing radiography
- Where
- Finland
- Volunteers
- 250 people, healthy volunteers welcome
- Sponsor
- Jukka Leinonen
Ophthalmologically Normal Subjects
Comparison of the Freiburg Visual Acuity Test (FrACT) With the EDTRS- and Landoltring Charts
A) For the investigation of Visual acuity, inter-test agreement and the test-retest reliability were used three different visual acuity tests: ETDRS charts, Landoltring chart and Freiburg Visual Acuity Test (FrACt).
- Trial name
- FEL (NCT02198534)
- Testing
- Methodology of visual acuity assessment
- Where
- Germany
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Schiefer Ulrich
Preoperative Anxiety, Orthognathic Surgical Procedures
Visual Tools and Preoperative Anxiety in Orthognathic Surgery
This study evaluates whether adding visual tools to standard preoperative counseling can reduce anxiety in patients scheduled for bimaxillary orthognathic surgery.
- Trial name
- NCT07394881
- Testing
- Verbal İnformation, Animation Video Counseling, 3-D Skull Model Counseling
- Where
- Turkey (Türkiye)
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Ankara University
Dietary Supplementation
Impact of Dark Chocolate on Visual Performance
The purpose is to conduct a randomized, single-masked crossover study to determine if acute consumption of a commercially available, highly palatable dark chocolate bar can improve visual performance.
- Trial name
- NCT03326934
- Testing
- Dark chocolate, Milk Chocolate
- Where
- United States
- Volunteers
- 57 people, healthy volunteers welcome
- Sponsor
- University of the Incarnate Word
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
Focal Lesions, Focal Brain Lesion
Attention and Visual Perception
The NIMH is conducting studies aimed at gaining a better understanding of the areas of the brain that are involved in different types of mental processes.
- Trial name
- NCT00111293
- Where
- United States
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- National Institute of Mental Health (NIMH)
Mouth Neoplasms
Visual Oral Examination for Early Detection of Oral Cancer in High-Risk Individuals
Oral cancer (OC) is a public health problem in Brazil, with high morbidity and mortality, mainly associated with late diagnosis, which implies high-cost treatments and great social impact, with aesthetic and functional sequelae.
- Trial name
- NCT06231537
- Testing
- Visual oral examination
- Where
- Brazil
- Volunteers
- 1,152 people, healthy volunteers welcome
- Sponsor
- Universidade Federal do Rio de Janeiro
Endothelial Dysfunction, Sublingual Capillary Glycocalyx and Density
Prematurity as Predictor of Children's Cardiovascular-renal Health
Extreme preterm birth interferes with the development of the cardiovascular system. Both macro- as well as microvasculature undergoes extensive, organ specific maturation.
- Conditions
- Endothelial Dysfunction, Sublingual Capillary Glycocalyx and Density, Visual Disturbances and Blindness, Ventricular Dysfunction, Left
- Trial name
- PREMATCH (NCT02147457)
- Where
- Belgium
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
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