Clinical trials: Ocular Pathologies
Glaucoma, Retinal Pathology
Ability of Patients With Low Vision to Properly Instill Eye Drops
The investigators are interested in seeing how people with low vision (decreased visual acuity or restricted visual fields) instill eye drops into their own eyes.
- Trial name
- NCT00760240
- Where
- United States
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Mid-Atlantic Glaucoma Experts
Stroke, Visual Defects
Differentiation of Human Body Balance Disorders
Our research aims to analyze the possibilities of functional assessment of imbalances in the human body. Using the available, commonly known and used tests and devices for objective examination of static and dynamic body balance…
- Conditions
- Stroke, Visual Defects, Labyrinth Diseases, Cervical Spine Degenerative Disease
- Trial name
- NCT07395180
- Testing
- Patients after stroke, Patients with posterior columns of the spinal cord, Patients with labyrinth diseases
- Where
- Poland
- Volunteers
- 330 people, healthy volunteers welcome
- Sponsor
- Military Institute od Medicine National Research Institute
Retinopathy of Prematurity, Diabetic Retinopathy
Optical Coherence Tomography Angiography (OCT-A) in Children (≥ 6 <14 Years of Age)
Comparison of OCTA to conventional imaging modalities for the diagnosis of eye diseases in children
- Trial name
- OCTAC (NCT03399825)
- Testing
- OCT-A
- Volunteers
- healthy volunteers welcome
- Sponsor
- Insel Gruppe AG, University Hospital Bern
Parkinson Disease, Visual Impairment
The Correlation of Reduction of Levodopa and Non-motor Symptoms of Parkinson's Disease After Deep Brain Stimulation
Patients with parkinson disease (PD) usually reduced the dose the levodopa after received deep brain stimulation (DBS). However, studies seldomly mentioned about the influences on non-motors systems after the reduction.
- Trial name
- NCT05901350
- Testing
- Levodopa
- Where
- China
- Volunteers
- 338 people, healthy volunteers welcome
- Sponsor
- Qilu Hospital of Shandong University
Gut Microbiota
Gut Microbiota in Major Depressive Disorders With and Without Rapid Eye Movement Behavior Disorder
The purpose of this study is to identify the variations in gut microbiota compositions between two subtypes of major depressive disorder.
- Trial name
- NCT05008120
- Testing
- No intervention
- Where
- Hong Kong
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Chinese University of Hong Kong
Blindness, Brain Mapping
The Connection Between Areas in the Brain of Blind Patients
The purpose of this study is to test the belief that specific areas of the brain are connected differently in blind patients than patients with sight.
- Conditions
- Blindness, Brain Mapping, Healthy
- Trial name
- NCT00001926
- Testing
- O15, Cadwell rTMS
- Where
- United States
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Amblyopia
Children's Eye Examination and Testing At Home Study
Repeated measures observational study of tablet-based children's visual acuity tests.
- Trial name
- CHEETAH (NCT06980415)
- Testing
- Kay Pictures iSight
- Where
- United Kingdom
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- University Hospital Southampton NHS Foundation Trust
Vision, Low, Blindness
Validation of Texture Changing Coatings for Use in At-Home Rapid Tests
At-home testing is an important part of mitigating the spread of COVID-19, but these tests are not accessible to people with low vision or blindness.
- Trial name
- NCT06539728
- Testing
- Interaction with Mock COVID-19 Rapid Antigen Test and Reference Surfaces, Biomechanical Measurements, Psychophysical Tasks
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Delaware
Vision Impairment
Providing Access to the Visual Environment
Providing Access to the Visual Environment is a pediatric low vision grant which has the ability to provide comprehensive, interdisciplinary low vision rehabilitation services to every child in Tennessee with a vision impairment.
- Trial name
- NCT00341744
- Where
- United States
- Volunteers
- 795 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University
Dry Eye Syndromes, Inflammation
Ocular Micro-vascular Research Base on Functional Slip Lamp Biomicroscopy
Dry eye disease (DED), as one of the most common ocular surface diseases that affecting visual acuity, is highly associated with ocular surface inflammation.
- Conditions
- Dry Eye Syndromes, Inflammation, Microvessels
- Trial name
- NCT03747614
- Testing
- Fluorometholone, Functional Slit-Lamp Biomicroscopy
- Where
- China
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Behcet's Disease, Central Sensitisation
Assessment of Central Sensitization, Neuropathic Pain, Sleep Quality and Daily Life Activities in Behcet's Disease
There are few studies in the literature regarding increased frequency of neuropathic pain and sleep disturbance and decreased quality of life in Behçet's disease.
- Trial name
- NCT03531385
- Testing
- Central sensitisation, Neuropathic pain, Sleep disturbance
- Where
- Turkey (Türkiye)
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Bursa Yuksek Ihtisas Training and Research Hospital
Behçet Disease, Inflammation
How Sirtuin Levels Change During Behçet Disease
Our primary aim in our study is to evaluate the relationship between the activity, which will be evaluated by clinical and standard phase reactants, and the IL-6 and TNF-α levels, which will be measured in serum, in Behçet\'s…
- Conditions
- Behçet Disease, Inflammation, Vasculitis
- Trial name
- NCT06266247
- Testing
- Take blood samples
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Karamanoğlu Mehmetbey University
Visual Suppression, Amblyopia
Autostereoscopic Dynamic Near Vision Testing
This is an analysis of tests of near vision. Visual perception testing using a novel program on an interactive three dimensional electronic device: Autostereoscopic dynamic near games for monocular visual acuity, stereopsis and…
- Conditions
- Visual Suppression, Amblyopia, Color Vision Defects
- Trial name
- PDICheck (NCT04606355)
- Testing
- Visual Acuity, stereopsis, Color vision
- Where
- United States
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Alaska Blind Child Discovery
Cornea; Ectasia, Refractive Errors
Corneal Elastography and Patient Specific Modeling
The goal of this research is to develop measurement tools and simulation technology for characterizing and predicting individual responses to corneal treatments and for advancing understanding of corneal ectasia risk factors.
- Conditions
- Cornea; Ectasia, Refractive Errors, Keratoconus
- Trial name
- NCT03030755
- Testing
- Optical coherence tomography
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- The Cleveland Clinic
Multiple Sclerosis, NMO Spectrum Disorder
National, Multicentric Registry Study on Neuroimmunological Diseases in China
The aim of this study is to establish a real-world clinical neuroimmune disease research cohort, to follow up and observe the prognosis of patients with different subtypes and subgroups, and to provide support for the treatment…
- Conditions
- Multiple Sclerosis, NMO Spectrum Disorder, Myelin Oligodendrocyte Glycoprotein Antibody-associated Disease, Myasthenia Gravis
- Trial name
- NIDBase (NCT06443333)
- Testing
- Data collection and follow-up observation, Data collection
- Where
- China
- Volunteers
- 7,000 people, healthy volunteers welcome
- Sponsor
- Xuanwu Hospital, Beijing
Progressive Supranuclear Palsy, Corticobasal Degeneration
Repetitive Transcranial Magnetic Stimulation (TMS) for Progressive Supranuclear Palsy and Corticobasal Degeneration
Drug therapy of atypical parkinsonism is generally considered either ineffective or minimal 1. Therefore, there is an urgent need to find alternative therapies to treat atypical parkinsonian disorders.
- Conditions
- Progressive Supranuclear Palsy, Corticobasal Degeneration, Parkinsonism
- Trial name
- NCT01174771
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of California, Los Angeles
Retinal Artery Occlusion
The Effect of A2A Adrenoceptor Stimulation on the Diameter of Retinal Arterioles During Hypoxia in Vivo
The purpose is to investigate how the adenosine affects the diameter regulation of retinal arterioles during changes in oxygen tension.
- Trial name
- NCT03090087
- Testing
- Hypoxia, Regadenoson
- Where
- Denmark
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Cataract, Signs and Symptoms
Spherical Aberration and Contrast Sensitivity in IOLs
Purpose: To determine whether implantation of an intraocular lens (IOL) with a modified anterior aspheric surface results in reduced spherical aberration and improved contrast sensitivity after cataract surgery.
- Conditions
- Cataract, Signs and Symptoms, Pseudophakia, Lens Diseases
- Trial name
- IOLs (NCT00576485)
- Testing
- Cataract surgery and intraocular lens implantation
- Where
- Brazil
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Federal University of Minas Gerais
Diplegia, Spastic
Eye-Hand Coordination in Children With Spastic Diplegia
This study will examine how the brain controls eye-hand coordination (visuomotor skills) in children with spastic diplegia and will determine whether impairment of this skill is related to the learning difficulties in school that…
- Trial name
- NCT00024791
- Where
- United States
- Volunteers
- 144 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Aphasia
Effects of Aphasia Identification Cards on Service Workers' Comprehension of People With Aphasia
The goal of this clinical trial is to learn whether healthy volunteers are more successful at understanding people with aphasia if they have first viewed an aphasia identification (ID) card.
- Trial name
- PAUSE (NCT06990997)
- Testing
- Aphasia identification (ID) card
- Where
- United States
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- University of Massachusetts, Amherst