Clinical trials: Vision
Healthy
Role of Nitric Oxide in Optic Nerve Head Blood Flow Regulation During Experimental Increase of Intraocular Pressure in Healthy Humans
Autoregulation is defined as the ability of a vascular bed to adapt its vascular resistance to changes in perfusion pressure. In the eye, several studies have reported that retinal blood flow is autoregulated over a wide range of…
- Trial name
- NCT00914394
- Testing
- NG-monomethyl-L-arginine (L-NMMA), Phenylephrine, Laser Doppler Flowmetry
- Where
- Austria
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Fed Conditions, Healthy Volunteer
A Clinical Study to See How the Body Handles and How Safe a Combination Tablet of Gemigliptin, Dapagliflozin, and Metformin 50/10/1000mg is Compared to Taking Gemigliptin 50mg Separately With Dapagliflozin/Metformin 10/1000mg in Healthy Adults After a Meal
Bioequivalence study for the fixed-dose combination of gemigliptin/dapagliflozin/metformin 50/10/1000 mg under fed conditions in healthy volunteers
- Trial name
- NCT07333742
- Testing
- Test drug: Fixed-dose combination (FDC) of gemigliptin/dapagliflozin/metformin 50/10/1000 mg, Reference drug: gemigliptin (Zemiglo) 50mg, Xigduo XR 10/1000 mg
- Where
- South Korea
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- LG Chem
Amblyopia, Regional Blood Flow
Amblyopia and Neurovascular Coupling in the Retina of Humans
The visual disorder of amblyopia affects 2% to 3% of the population. Amblyopia is a developmental condition that is characterized by reduced vision of the eye due to the presence of a sensory impediment during visual development…
- Trial name
- NCT00312390
- Testing
- Flicker, Retinal Vessel Diameter, Retinal Blood Flow
- Where
- Austria
- Volunteers
- healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Dry Eye
A Study of the Effect of Zinc-Hyaluronate on Ocular Surface Sensations in Patients With Dry Eye
Hyaluronic acid, a natural polymer, helps to maintain ocular surface hydration and can already be found in several artificial tears recommended to alleviate symptoms of dry eye.
- Trial name
- NCT02951910
- Testing
- Ophylosa tear supplement
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Semmelweis University
Glaucoma
Polymorphisms in the Human Matrix Metalloproteinase Genes MMP1, MMP3, and MMP9: Genetic Risk Factors of Primary Open Angle Glaucoma?
Matrix metalloproteinases (MMPs) fulfill diverse important molecular functions and play pivotal roles in development, tissue morphogenesis, repair, aging, and inflammatory processes.
- Trial name
- NCT00312403
- Testing
- Blood Sample
- Where
- Austria
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Age-related Macular Degeneration, Dementia
Words on the Brain: Can Reading Rehabilitation for Age-Related Vision Impairment Improve Cognitive Functioning?
Age-related vision impairment and dementia both become more prevalent with increasing age. Research into the mechanisms of these conditions has proposed that some of their causes (e.g., macular degeneration/glaucoma and…
- Conditions
- Age-related Macular Degeneration, Dementia, Low Vision, Low Vision Aids
- Trial name
- WOTB (NCT04276610)
- Testing
- Low Vision Reading Rehabilitation
- Where
- 2 sites in Canada
- Volunteers
- 38 people, healthy volunteers welcome
- Sponsor
- Université de Montréal
Primary Open Angle Glaucoma, Secondary Open Angle Glaucoma
Early Diagnosis, Pathogenesis and Progression of Open Angle Glaucoma
The Erlangen Glaucoma Registry is a clinical registry for cross sectional and longitudinal observation of patients with open angle glaucoma (OAG) or glaucoma suspect, founded in 1991.
- Conditions
- Primary Open Angle Glaucoma, Secondary Open Angle Glaucoma, Ocular Hypertension
- Trial name
- NCT00494923
- Where
- Germany
- Volunteers
- 2,500 people, healthy volunteers welcome
- Sponsor
- University of Erlangen-Nürnberg Medical School
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, Intraocular Pressure
Intraocular Pressure Fluctuation in Patients With Glaucoma and in Healthy Patients During Standard Yoga Positions
The purpose of the study is to investigate the IOP difference between normal and glaucomatous eyes using standard ophthalmic tonometry devices while subjects are performing different standard yoga asanas.
- Trial name
- NCT01915680
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Robert Ritch, MD, LLC.
Accidental Fall, Visual Impairment
Falls Prevention for Visually Impaired Older People
This study aims to examine the effectiveness of an intensive five day falls prevention training programme with a home evaluation and a home exercise programme, compared with a home evaluation and exercise programme alone for…
- Conditions
- Accidental Fall, Visual Impairment, Fall
- Trial name
- NCT04078529
- Testing
- 5 day falls prevention training, Home exercise programme, Environmental Assessment
- Where
- United Kingdom
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Blind Veterans UK
Contact Lens Discomfort
The Effect of Eyelid Margin Debridement on Contact Lens Discomfort
In this study, clinical variables related to eyelids that potentially have an effect on contact lens discomfort will be investigated such as eyelid signs and secretions, eyelid sensitivity, eyelid microbiome, Demodex infestation…
- Trial name
- NCT03311204
- Testing
- BlephEx, Lid Hygenix
- Where
- Australia
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- The University of New South Wales
Uveal Melanoma
Stereotactic Body Radiation Therapy and Aflibercept in Treating Patients With Uveal Melanoma
This phase II trial studies how well stereotactic body radiation therapy and aflibercept work in treating patients with uveal melanoma.
- Trial name
- NCT03712904
- Testing
- Stereotactic Body Radiation Therapy, Ziv-Aflibercept
- Where
- United States
- Volunteers
- 3 people, healthy volunteers welcome
- Sponsor
- Sidney Kimmel Comprehensive Cancer Center at Thomas Jefferson University
Obstructive Sleep Apnoea, Open Angle Glaucoma
Prevalence of Obstructive Sleep Apnoea in Glaucoma
This study aims to investigate a potential link between Obstructive Sleep Apnoea (OSA) and Open Angle Glaucoma (OAG); initially by determining whether the prevalence of OSA is higher in patients with OAG in comparison to people…
- Trial name
- POSAG (NCT02713152)
- Where
- United Kingdom
- Volunteers
- 403 people, healthy volunteers welcome
- Sponsor
- Papworth Hospital NHS Foundation Trust
Astigmatism
Evaluation Study on Corneal Lens for Vision Correction
The objective of this study is to evaluate the fitting and visual outcomes of Nexis Lens, made of silicone commonly used in the contact lens industry, on healthy eye with or without astigmatism.
- Trial name
- NCT02053688
- Testing
- Astigmatic Correction Lens (Nexis ACCL lenses), Toric Soft Contact Lenses
- Where
- 6 sites in United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- FORSIGHT Vision3
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
Eye Diseases
iSCREEN-study: Online Nurse-assisted Eye-screening in Home Healthcare
The aim of this study is to investigate the cost-effectiveness of a nurse-assisted online eye-screening in home healthcare in reducing eye complaints.
- Trial name
- NCT06058637
- Testing
- Eye screening
- Where
- Netherlands
- Volunteers
- 234 people, healthy volunteers welcome
- Sponsor
- Amsterdam UMC, location VUmc
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
Pseudoexfoliation Syndrome, Carpal Tunnel Syndrome (CTS)
Pseudoexfoliation and Carpal Tunnel Study
This prospective, single-center case-control study aimed to investigate the association between pseudoexfoliation syndrome (PES) and carpal tunnel syndrome (CTS) using biochemical markers.
- Trial name
- NCT06946030
- Where
- Turkey (Türkiye)
- Volunteers
- 159 people, healthy volunteers welcome
- Sponsor
- Ankara Training and Research Hospital
Glaucoma
Comparison of Critical Flicker Fusion Versus Automated Visual Fields in the Detection of Early Glaucoma
The purpose of this study is to evaluate if critical flicker fusion is a more reliable method for detection of early glaucoma compared to automated visual fields in comparison to subjects without evidence of glaucoma or optic…
- Trial name
- NCT01076114
- Where
- United States
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- Northwell Health
Retinopathy, Retinal Vein Occlusion
Feasibility and Safety of MB-102 in Ocular Angiography as Compared to Fluorescein Sodium
The objective of this study is to evaluate the safety and image quality of the investigational dye, MB-102, compared to the control dye (fluorescein sodium) in healthy and diseased eyes using fluorescent angiography for retinal…
- Conditions
- Retinopathy, Retinal Vein Occlusion, Diabetic Retinopathy, Macular Degeneration
- Trial name
- NCT04008121
- Testing
- Fluorescein sodium and Zeiss FF450 fundus camera, MB-102 and Zeiss FF450 fundus camera, Fluorescein sodium and commercially available optical angiography imaging system
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- MediBeacon