Clinical trials: Ocular Physiology
Diabetic Retinopathy
Role of the Serum Exosomal miRNA in Diabetic Retinopathy (DR)
Diabetic retinopathy (DR) is one of the most common causes of blindness worldwide. It is a progressive disease and its detection in early phases is very crucial for visional outcomes.
- Trial name
- NCT03264976
- Testing
- hematological examination, ophthalmic examination
- Volunteers
- 200 people
- Sponsor
- Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine
Methylmalonic Aciduria and Homocystinuria,Cblc Type, Genetic Disease
EPI-743 in Cobalamin C Defect: Effects on Visual and Neurological Impairment
The aim of the research is to investigate the safety and efficacy of EPI-743 treatment in patients with Cbl-C defect and related visual and neurological impairment.
- Conditions
- Methylmalonic Aciduria and Homocystinuria,Cblc Type, Genetic Disease, Retinopathy
- Trial name
- NCT01793090
- Testing
- Epi-743
- Where
- Italy
- Volunteers
- 30 people
- Sponsor
- Bambino Gesù Hospital and Research Institute
Ocular Physiology, Regional Blood Flow
Effects of Topical Clonidine vs. Brimonidine on Choroidal Blood Flow and Intraocular Pressure During Isometric Exercise
Brimonidine tartrate is an alpha-2 agonist ocular hypotensive drug that exerts its effect by causing both a decrease in aqueous production and an increase in uveoscleral outflow.
- Trial name
- NCT00312416
- Testing
- Clonidin, Brimonidine
- Where
- Austria
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Cataracts
Visual Function Evaluation of Bilateral AcrySof ReSTOR Aspheric IOL
The objective of this study is to evaluate postoperative visual function in patients implanted bilaterally with the ReSTOR Aspheric Intraocular Lens (IOL).
- Trial name
- NCT00818116
- Testing
- AcrySof ReSTOR Aspheric IOL
- Where
- United States
- Volunteers
- 34 people
- Sponsor
- Alcon Research
Adolescents and Children, Axial Elongation
Naked Eye 3D Vision Training for the Prevention and Control of Myopia in Adolescents and Children
The study used children aged 6-18 as subjects to evaluate the efficacy and safety of naked eye 3D vision training for the prevention and control of myopia in adolescents.
- Conditions
- Adolescents and Children, Axial Elongation, Naked Eye 3D Vision Training, Visual Function
- Trial name
- NCT05468775
- Testing
- Naked eye 3D vision training
- Volunteers
- 250 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Glaucoma, Mild Cognitive Impairment
Assessing Neurovisual Function in Patients With Cognitive Impairment
The aim of this study is to measure fitness to drive in patients with a visual and a cognitive impairment. To do so, Ocusweep is used in patients with glaucoma and Mild Cognitive Impairment.
- Conditions
- Glaucoma, Mild Cognitive Impairment, Glaucoma and Mild Cognitive Impairment, Healthy
- Trial name
- NCT03333096
- Testing
- Ocusweep test battery, Neuropsychological test battery
- Where
- Finland
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Turku University Hospital
Myopia, Refractive Errors
Effect of Repeated Low-Level Red-Light Therapy on Retinal Function and Structure
The purpose of this clinical trial is to evaluate the effect of repeated low-level red-light (RLRL) therapy on the retinal function and structure among myopic teenagers.
- Conditions
- Myopia, Refractive Errors, Eye Diseases, Retina; Change
- Trial name
- NCT05597397
- Testing
- RLRL
- Where
- China
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
Retinal Detachment, Optic Neuropathy
Effect of Intraocular Tamponade on Visual Perception
Intraocular tamponade used in vitrectomy operations may affects retinal function in various mechanisms.
- Conditions
- Retinal Detachment, Optic Neuropathy, Glaucoma
- Trial name
- NCT05543018
- Testing
- Electroretinogram, Vitrectomy operation
- Where
- Egypt
- Volunteers
- 60 people
- Sponsor
- Benha University
Eye Health, Vision
The Effects of VisionPure™ on Indices of Vision Health and Cognitive Function
VisionPure™ is a softgel dietary supplement containing fish oil, lutein, zeaxanthin, and vitamin D. The intent of the VisionPure product is to assist in maintaining eye and cognitive health while helping to provide protection…
- Conditions
- Eye Health, Vision, Cognitive Function
- Trial name
- NCT05533658
- Testing
- VisionPure Dietary Supplement
- Where
- 3 sites in United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Applied Science & Performance Institute
Macular Degeneration
Effect of DHA Supplements on Macular Function in Patients With Stargardt Macular Dystrophy and Stargardt-like Macular Dystrophy
This study will evaluate whether docosahexaenoic acid (DHA) dietary supplementation can improve macular function in patients with Stargardt macular dystrophy and Stargardt-like macular dystrophy.
- Trial name
- NCT00060749
- Testing
- Docosahexaenoic Acid (DHA) Dietary Supplement
- Where
- United States
- Volunteers
- 22 people
- Sponsor
- National Eye Institute (NEI)
Cerebral Palsy, Visual Impairment
Turkish Validity and Reliability of the Visual Function Classification System (VFCS)
Cerebral Palsy (CP) is the most common childhood disorder that occurs with a lesion in the developing infant brain, seen in 2-3/1000 live births.
- Conditions
- Cerebral Palsy, Visual Impairment, Visual Disorder, Cerebral Visual Impairment
- Trial name
- NCT05102955
- Testing
- Observational questionnaires
- Where
- Turkey (Türkiye)
- Volunteers
- 120 people
- Sponsor
- Kahramanmaras Sutcu Imam University
Visual Function
A Performance Study Comparing the EyeMirage (Test Device) to Standard of Care (Reference Device) in Patients 18 to 65 Years of Age Undergoing Standard Eye Examinations Such as Visual Acuity, Visual Field, Color Vision, and Self-Paced Saccade for Various Conditions
This study will assess the effectiveness and accuracy of results of a new device for eye function testing. This will be done by comparing results of four eye tests that are done through the current standard used in eye clinics…
- Trial name
- NCT06908967
- Testing
- EyeMirage device
- Where
- 4 sites in Canada
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- Neuroptek Corporation Inc.
Amblyopia
Evaluation of Amblyopia Protocols Using a Dichoptic Gabor Videogame Program
Interest in developing alternative methods for the treatment of amblyopia (lazy eye) has long been a topic of interest among clinicians and researchers.
- Trial name
- NCT06150391
- Testing
- Visionary: computer exercises using dichoptic Gabor Patches and band-filtered noise masks, Patching
- Where
- Spain
- Volunteers
- 125 people
- Sponsor
- Hospital de Merida
Stargardt Disease
A Natural History of the Progression of Stargardt Disease: Retrospective and Prospective Studies
Stargardt disease is currently an incurable and untreatable macular dystrophy that causes severe visual loss in children and young adults, thereby causing enormous morbidity with economic, psychological, emotional, and social…
- Trial name
- ProgSTAR (NCT01977846)
- Where
- 9 sites in United States, France and 2 more
- Volunteers
- 259 people
- Sponsor
- Foundation Fighting Blindness
Anisometropic Amblyopia, Strabismic Amblyopia
3D Movie Viewing vs Occlusion for Treating Amblyopia in Children
Amblyopia is a common childhood visual disorder that affects vision in one eye and can also impair depth perception (stereopsis).
- Trial name
- VISTA3D (NCT07563946)
- Testing
- 3D Movie Viewing, Occlusion Therapy
- Volunteers
- 56 people
- Sponsor
- Universitat Politècnica de Catalunya
Amblyopia, Strabismus
Visual Function Abnormalities in Strabismus and Amblyopia and Response to Therapy
Amblyopia and strabismus are characterized by a reduction in visual acuity, contrast sensitivity, grating acuity, vernier acuity, reading difficulties and binocular visual function deficits.
- Trial name
- NCT04310241
- Testing
- Patching therapy, Glasses
- Where
- United States
- Volunteers
- 150 people
- Sponsor
- The Cleveland Clinic
Limbal Dermoid
Visual Quality and Contrast Sensitivity Function for Limbal Dermoid Children After Corneal Transplantation
This study is to inquiry the contrast sensitivity function in the 50 eyes of limbal dermoid children with keratoplasty with quick contrast sensitivity function (quick CSF) test, as well asa to analyze its relationship between…
- Trial name
- NCT03447041
- Where
- China
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Hemiplegia and/or Hemiparesis Following Stroke
Immersive v/s Non-immersive Virtual Reality in Enhancing Upper Limb Functions Among Individuals With Subacute Stage Hemiplegia
The goal of this randomized controlled trial is to compare the effectiveness of immersive virtual reality combined with conventional therapy to the effectiveness of non-immersive virtual reality combined with conventional therapy…
- Trial name
- NCT06615141
- Testing
- Oculus Quest 3, Neofect Smartboard and Tyromotion Myro
- Where
- United Arab Emirates
- Volunteers
- 30 people
- Sponsor
- Gulf Medical University
Ocular Albinism (OA), Oculocutaneous Albinism (OCA)
The Effects of Lutein and Zeaxanthin Supplementation on Vision in Patients With Albinism
The LUVIA study is a randomized placebo-controlled trial designed to investigate the effects of lutein and zeaxanthin supplementation on macular pigment and visual function in ocular or oculocutaneous albinism.
- Trial name
- LUVIA (NCT02200263)
- Testing
- Lutein plus Zeaxanthin
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- Johns Hopkins University
Visual Acuity
The Effects of Contact Lenses With UV/HEV-Filter on Visual Function
This is a 2-phase, single-site, non-dispensing, randomized, controlled, double-masked, 2x2 crossover study to objectively measure potential benefits of a new UV/HEV filter using psychophysical testing techniques.
- Trial name
- NCT05601544
- Testing
- ACUVUE OASYS 1-Day, ACUVUE OASYS MAX 1-Day, ACUVUE OASYS Multifocal
- Where
- United States
- Volunteers
- 145 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.