Clinical trials: Visualization
Dentinal Hypersensitivity
Comparison of Efficacy of 5% Fluorocalcium Phosphosilicate Dentifrice and Potassium Nitrate Dentifrice on Dentinal Hypersensitivity
Aim of this study was to assess and compare the efficacy of a dentifrice containing 5% fluoro calcium phosphosilicate and dentifrice containing potassium nitrate on Dentinal Hypersensitivity (DH) compared to a placebo over a…
- Trial name
- NCT03738514
- Testing
- 5% fluorocalcium phosphosilicate dentifrice, 5% potassium nitrate dentifrice
- Where
- India
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Government Dental College and Research Institute, Bangalore
Viral Infection, Covid19
Mental Imagery to Increase Face Covering Use in UK-based Public Places During the COVID-19 Pandemic
Wearing face coverings in enclosed public spaces is a key public health measure to limit viral spread during the 2020 Covid-19 pandemic.
- Trial name
- NCT04583449
- Testing
- Mental imagery
- Where
- United Kingdom
- Volunteers
- 250 people, healthy volunteers welcome
- Sponsor
- University of East London
Amblyopia
Combining Donepezil With Perceptual Learning in Normal and Amblyopic Human The Effect of Donepezil on Perceptual Learning in Adult Amblyopia
The research deals with amblyopia or lazy eye, a condition that affects about 3% of the population, and results in a variety of visual deficits.
- Trial name
- NCT03109314
- Testing
- Donepezil, Single-letter training, Uncrowd training
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Dennis Levi
Pregnancy, Labor Delivery
The Effect of Mental Toughness Interventions During Birth on the Pelvic Floor in the Postpartum Period
This randomized controlled study aimed to determine the effect of mental toughness interventions initiated during the third trimester of pregnancy and applied during childbirth on pelvic floor-related distress in the postpartum…
- Conditions
- Pregnancy, Labor Delivery, Breath Exercise, Relaxation
- Trial name
- NCT07771647
- Testing
- Mental Toughness
- Where
- Turkey (Türkiye)
- Volunteers
- 62 people, healthy volunteers welcome
- Sponsor
- Istanbul University - Cerrahpasa
Visual Acuity
Clinical Evaluation of Daily Disposable Etafilcon A Cosmetic Contact Lenses (2022)
This is a multi-site, 4-visit, brand-masked, bilateral, 2x2 cross-over dispensing study to evaluate visual acuity.
- Trial name
- NCT05480514
- Testing
- TEST LENS, CONTROL LENS
- Where
- 2 sites in Hong Kong
- Volunteers
- 89 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Diabetes Mellitus, Type 2, Cognitive Dysfunction
Detection of Visual-Auditory Reaction Rates in Individuals With Type 2 Diabetes
Background: The primary purpose of our study was to understand the damage in the peripheral nerves of patients with diabetes and to determine the change in patients' reaction rates and perceptions by the age groups, duration of…
- Conditions
- Diabetes Mellitus, Type 2, Cognitive Dysfunction, Nerve Damage
- Trial name
- NCT05725889
- Testing
- recation time test
- Where
- Turkey (Türkiye)
- Volunteers
- 128 people, healthy volunteers welcome
- Sponsor
- Baskent University
Multiple Sclerosis, Relapsing-Remitting, Optic Neuritis
Light Stimulation to Improve Visual Function After Optic Neuritis in Persons with Multiple Sclerosis
The aim of this monocentric randomized controlled intervention study is to improve visual function in persons with multiple sclerosis following optic neuritis (neuritis nervi optici) by means of a light stimulation.
- Trial name
- ONSTIM (NCT06389968)
- Testing
- Light stimulation
- Where
- Germany
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Technical University of Munich
Overweight, Obesity
The Influence of Acute Continuous Exercise and Adiposity on Appetite Hormones and Neural Correlates of Visual Food Cues
Exercise increases energy expenditure and impacts appetite and energy intake. Some appetite-related hormones such as oxyntomodulin suppress appetite whilst other hormones such as ghrelin stimulate appetite.
- Trial name
- ACECRAVE (NCT06849050)
- Testing
- Acute continuous exercise
- Where
- United Kingdom
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Loughborough University
Schizophrenia
Cognitive and Emotional Factors in Visual Exploration Among Patients With Schizophrenia
Background: Patients with schizophrenia are abnormally disturbed by information onsets, which may result in a disadvantage in filtering relevant information.
- Trial name
- SAILLANCE1 (NCT02874482)
- Where
- France
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- University Hospital, Lille
Healthy
Transcranial Magnetic Stimulation to Study Imagination of Movement
This study will use transcranial magnetic stimulation (TMS) to examine the relationship between cognitive processing and motor control by determining whether a part of the brain called the premotor cortex is essential to…
- Trial name
- NCT00046215
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Low Vision
Performance of Rigid Gas Permeable (RGP) Scleral Contact Lenses With a Passive Artificial Iris
Data from 15 healthy subjects will be recorded in two testing sessions spread on two days, using three lens designs (A, B and C).
- Trial name
- RGPIRIS_PA (NCT04040790)
- Testing
- Scleral contact lens without a passive artificial iris, Scleral contact lens with a passive artificial iris with low contrast (<1:5), Scleral contact lens with a passive artificial iris with high contrast (>1:5)
- Where
- Belgium
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University Ghent
Simulation Training
Effect of the Use of a Visual Feedback Device in RCP Trainings
To verify the efficacy of manikins with feedback in the training of physicians and nurses in the courses of Advanced Cardiac Life Support (ACLS) authorized by the American Heart Association (AHA) when compared to the traditional…
- Trial name
- NCT04338490
- Testing
- Feedback mannequim
- Where
- Brazil
- Volunteers
- 209 people, healthy volunteers welcome
- Sponsor
- Instituto de Cardiologia do Rio Grande do Sul
Visual Acuity
Evaluation of a Digital Visual Acuity Device vs. Standard Visual Acuity Measurements
The purpose of this research is to validate and determine the accuracy of the experimental device when measuring visual acuity versus our standard visual acuity measurements and to gather voice recordings of letters to help build…
- Trial name
- NCT06431295
- Testing
- FaceScan
- Where
- United States
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Optic Atrophy, Hereditary, Leber
A Randomized, Double-blind, Placebo-controlled Trial of Curcumin in Leber's Hereditary Optic Neuropathy (LHON)
Background Leber's Hereditary Optic Neuropathy (LHON) is a maternally inherited ocular disorder associated with a mutation in mtDNA .
- Trial name
- NCT00528151
- Testing
- curcumin
- Where
- Thailand
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Mahidol University
Presbyopia
Clinical Assessment of a Customized Free-form Progressive Addition Lens Spectacle
The purpose of this study was to compare objective clinical measures of visual performance and subjective measures of satisfaction and preference between standard progressive addition lens (PAL) spectacles and a new type of…
- Trial name
- CZV_PAL1 (NCT01234207)
- Testing
- Standard, non-free-form, non-customized PAL spectacles, Individually customized free-form surfaced PAL spectacles
- Where
- United States
- Volunteers
- 95 people, healthy volunteers welcome
- Sponsor
- University of California, Berkeley
Visual Acuity
Evaluation of Senofilcon A With New UV-blocker on a Neophyte Population
This is a 5-visit, single-arm, open-label, dispensing study. Each subject will be bilaterally fit with the test article for approximately 4 weeks of reusable daily wear with lens replacement occurring 2-weeks after initial…
- Trial name
- NCT03742271
- Testing
- senofilcon A
- Where
- 11 sites in United States
- Volunteers
- 130 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Presbyopia
Luminous Efficiency Function V(λ)' of Patients That Underwent Pseudophakic Presbyopic Corrections With EDOF IOLs
Primary objective of this study is to introduce a modified luminous efficiency function that addresses the distinct total eye light transmittance of patients who underwent pseudophakic presbyopic correction with extended-depth of…
- Trial name
- V(λ)'_EDOF (NCT07077967)
- Testing
- Phacoemulsification with EDOF IOLs
- Where
- Greece
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Democritus University of Thrace
Visual Acuity
Evaluation of Approved and Investigational Contact Lenses
This study is a randomized, 5-visit, partial subject masked, 2x3 bilateral crossover, dispensing clinical trial. During the study, each test article will be worn in a daily wear modality for at least 6 hours per day and 5 days…
- Trial name
- NCT03228212
- Testing
- CONTROL, TEST
- Where
- 5 sites in United States
- Volunteers
- 133 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Visual Nonspecific
Repeatability and Concordance of VA Measured With ETDRS Numeric , Landolt C, and Letter Charts in Thai Individuals
This is a cross-sectional study to determine the repeatability and concordance of visual acuity level measured with the original ETDRS letter, ETDRS Landolt C, and ETDRS numeric chart in Thai individuals.
- Trial name
- NCT02810665
- Testing
- Visual acuity measurement by ETDRS chart
- Where
- Thailand
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- Chiang Mai University
Motion Estimation and Motion Compensation
Motion Estimation and Motion Compensation on Reducing Visual Fatigue
Visual fatigue, a hallmark of CVS, is particularly prevalent among mobile gamers who engage in prolonged gaming sessions. The dynamic visual stimuli in modern games-characterized by rapid movements, high refresh rates, and…
- Trial name
- NCT07038759
- Testing
- the Motion Estimation and Motion Compensation
- Where
- China
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
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