Clinical trials: Visual Perception
Blindness
Enhanced Tactile Memory in the Blind
This study will determine if the brain regions in blind people that would normally be involved in vision are used instead to remember touch.
- Trial name
- NCT00076700
- Where
- United States
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Ophthalmic Diseases (Specific Types Not Restricted), Cataract
Research on a New Intelligent Mobile Screening and Diagnosis Pattern for Ocular Diseases
The global distribution of primary ophthalmic medical resources is uneven, and the traditional eye disease screening model has problems such as low efficiency, high cost and limited coverage.
- Conditions
- Ophthalmic Diseases (Specific Types Not Restricted), Cataract, Refraction Error, Diabetic Retinopathy (DR)
- Trial name
- NCT07003165
- Volunteers
- 15,000 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Myopia, Progressive, Myopia
Clinical Evaluation of a Myopia Control Lens in Slowing Myopia Progression
This is a monocenter, randomized, controlled, parallel-group, double-masked clinical trial to evaluate the effectiveness of test lens in slowing myopia progression with respect to axial length elongation at baseline compared to a…
- Trial name
- NCT05331378
- Testing
- Test myopia control lenses, Single vision lenses
- Where
- Singapore
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Essilor International
Vestibulo-Ocular Reflex, Esports Participation
Comparison of Vestibulo-Ocular Reflex and Cognitive Functions in E-Athletes and Non-Athletes
This study aims to compare cognitive functions and functional vestibulo-ocular reflex (VOR) between e-athletes and non-athletes.
- Conditions
- Vestibulo-Ocular Reflex, Esports Participation, Cognitive Functioning
- Trial name
- NCT07211191
- Where
- Turkey (Türkiye)
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Yusa Basoglu
Allergic Conjunctivitis
A Six-Week Safety Study of an Investigational Ophthalmic Solution
The purpose of this study was to evaluate the ocular safety of an investigational ophthalmic solution in subjects 2 years of age and older with asymptomatic eyes when administered once daily in both eyes for up to 6 weeks.
- Trial name
- NCT01698814
- Testing
- AL-4943A Ophthalmic Solution, AL-4943A Ophthalmic Solution Vehicle
- Volunteers
- 518 people, healthy volunteers welcome
- Sponsor
- Alcon Research
Dry Eye Disease
Comparison of Mucin Levels at the Ocular Surface of Visual Display Users With and Without Dry Eye Disease
The study aimed to evaluate 1) if levels of the glycocalyx membrane mucins, including MUC1, MUC4, MUC16 and MUC20, are altered in conjunctival cells of visual display users With and Without Dry Eye Disease, and 2) if mucin levels…
- Trial name
- NCT05604651
- Testing
- no intervention
- Where
- China
- Volunteers
- 94 people, healthy volunteers welcome
- Sponsor
- Peking University Third Hospital
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
Retinitis Pigmentosa, Cone Dystrophy
Phenotype Correlates Genotype of Inherited Retina Dystrophies, Retinitis Pigmentosa, Con>Rod Dystrophies.
Patients with retina dystrophies (retinitis pigmentosa, cone>rods dystrophies, Usher and syndromic) will be correlated with genotype and validate inheritance mode by segregation analysis.
- Conditions
- Retinitis Pigmentosa, Cone Dystrophy, Usher Syndromes, Retina; Dystrophy
- Trial name
- NCT03990727
- Testing
- Retina Analysis-mosaic, Autofluorescence, OCT- 1 micra
- Where
- Mexico
- Volunteers
- 17,000 people, healthy volunteers welcome
- Sponsor
- MejoraVisionMD
Stress and Performance, Pilot Stress
The Investigators Want to See if There is a Correlation Between Stress and the Microbiome for Pilots and Astronauts and if There is a Way to Optimize This Balance for Pilots so That They Can Maximize Aerodynamic Decision Making on the Flight Deck.
The investigators are going to test the bacteria growing in your intestine to see if it influences your ability to manage stress while flying an airplane.
- Trial name
- NCT07829159
- Testing
- Flight simulator
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Nebraska
Glaucoma
Evaluation of Visual Training System in Patients With Glaucoma
This study intends to conduct visual function examinations and follow-ups on two groups of glaucoma patients, one receiving visual perceptual training and the other serving as a control without training.
- Trial name
- NCT06433102
- Testing
- Visual perceptual training based on the lateral masking paradigm
- Where
- China
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Vision Status
A Pilot Survey to Establish Vision Health Surveillance Indicators for Children and Adolescent in Taiwan
The purpose of this research project is to develop a vision surveillance system, in order of understanding the vision health status of children and adolescents in Taiwan.
- Trial name
- NCT03750630
- Where
- Taiwan
- Volunteers
- 10,000 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Refractive Error, Visual Impairment
The Baltimore Reading and Eye Disease Study
The Baltimore Reading and Eye Disease Study (BREDS) is a two year study to determine the prevalence of vision problems in an early school age population with reading difficulty.
- Conditions
- Refractive Error, Visual Impairment, Convergence Insufficiency, Reading Disabilities
- Trial name
- BREDS (NCT02607384)
- Testing
- Eyeglass wearing, Orthoptic exercises, Specialist referral
- Volunteers
- 328 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins University
Bradycardia, Strabismus
The Alaska Oculocardiac Reflex Study
Observation study monitoring vital signs and anesthetic variables particularly heart rate during prospective, ocular manipulation and specifically uniform tension on extra ocular muscles during strabismus surgery.
- Trial name
- AK-OCR (NCT04353960)
- Testing
- electrocardiograph
- Where
- United States
- Volunteers
- 4,000 people, healthy volunteers welcome
- Sponsor
- Alaska Blind Child Discovery
Autism Spectrum Disorders, Schizophrenia
Visual Exploration and Attention: Studies in Patients With Schizophrenia and Autism Spectrum Disorders
The aim of the protocol is to better understand the impairments in visual processing, as such impairments may induce social interaction difficulties in subjects with autism spectrum disorders (adults and children) and…
- Trial name
- NCT00914030
- Testing
- Neuropsychological evaluation
- Where
- 5 sites in France
- Volunteers
- 140 people, healthy volunteers welcome
- Sponsor
- University Hospital, Strasbourg, France
Visual Impairment, Refractive Error
Frequency of Visual Impairment Among School Children and Effectiveness of mHealth Referral Reminder on Uptake of Referral Services
This study tested whether mobile health (mHealth) tools can affect referral uptake among schoolchildren with vision problems.Visual impairment in children often goes untreated in low- and middle-income countries, even when…
- Trial name
- NCT06616051
- Testing
- Multicomponent SMS reminder
- Where
- Pakistan
- Volunteers
- 320 people, healthy volunteers welcome
- Sponsor
- Syed Fawad Mashhadi
Emergence Delirium, Strabismus
Methadone for Emergence Delirium in Children Undergoing Outpatient Strabismus Surgery
Strabismus surgery for children is a very common procedure, with a high incidence of emergence delirium in the recovery room. Pain is often implicated in delirium.
- Trial name
- NCT03778372
- Testing
- Methadone
- Where
- United States
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Ochsner Health System
Myopic Progression
Investigation of the Effect of Short-term Orthokeratology With Increased Compression Factor on Ocular Parameters
Orthokeratology (ortho-k) is a clinical technique that uses reverse geometry rigid gas permeable contact lens exerting positive pressure on the central cornea to temporary reduce refractive error.
- Trial name
- NCT02643875
- Testing
- Orthokeratology
- Where
- China
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Pterygium, Dry Eye
Using Impression Cytology to Observe the Cytological Changes of Ocular Surface Cells in Various Ocular Surface Disorders
Currently, due to the advantage of noninvasive, localized, rapid, painless and easily repeatable of impression specimens, the technique is an ideal method of investigating ocular surface disorders when the diagnosis is not…
- Conditions
- Pterygium, Dry Eye, Tumor
- Trial name
- NCT01387971
- Where
- Taiwan
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Noninfectious Uveitis
The Microbiome in Uveitis and Pediatric Inflammatory Diseases
Chronic, noninfectious uveitis in children, associated with various systemic inflammatory diseases, carries a high risk of vision loss.
- Trial name
- MUMIP (NCT07885501)
- Where
- France
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Assistance Publique - Hôpitaux de Paris
Schizophrenia
Perception of Facial Emotions in Schizophrenia and 22q11 Deletion Syndrome
Background: The present study aims to identify the mechanisms underlying the deficit in facial emotion recognition reported both in schizophrenia and the 22q11.2 deletion syndrome, and thus, reveal a distinction between the two…
- Trial name
- FaSchi22 (NCT02634671)
- Testing
- schizophrenia, the 22q11 deletion syndrome, control group
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Hôpital le Vinatier