Clinical trials: Retinal Vessels
Ischemic Optic Neuropathy, Branch Retinal Artery Occlusion
New Non-invasive Modalities for Assessing Retinal Structure and Function
This study investigates a new technology to assess the structure and function inside the eye. Retinal imaging of subjects with inner and outer retinal defects to detect areas of abnormal structure and function compared to other…
- Conditions
- Ischemic Optic Neuropathy, Branch Retinal Artery Occlusion, Hemianopia, Leber Hereditary Optic Neuropathy
- Trial name
- NCT03475173
- Testing
- LSFG-NAVI
- Where
- United States
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Randy Kardon
Coronary Vasospasm
Effect of Glucose on Ocular Blood Flow
The primary objective is to assess the effect of glucose on retinal vascular diameter in otherwise healthy vasospastic subjects compared to non-vasospastic controls.
- Trial name
- NCT00350129
- Where
- Switzerland
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- University Hospital, Basel, Switzerland
Dementia, Neurodegenerative Diseases
Retinal Hyperspectral Imaging in Neurodegenerative Diseases
Hyperspectral retinal imaging is a non-invasive imaging modality in which a series of images of the retina are captured using light of different wavelengths.
- Conditions
- Dementia, Neurodegenerative Diseases, Alzheimer Disease, Parkinson Disease
- Trial name
- NCT07545473
- Testing
- Hyperspectral camera
- Where
- Australia
- Volunteers
- 930 people, healthy volunteers welcome
- Sponsor
- Center for Eye Research Australia
Healthy
Measurement of the Eye's Blood Vessels Using the Dynamic Vessel Analyzer (DVA)
The purpose of this research study is examine the response of the blood vessels in the eye to a light flicker stimulus using the Dynamic Vessel Analyzer (DVA) on two separate days in healthy individuals.
- Trial name
- NCT00783029
- Where
- United States
- Volunteers
- 87 people, healthy volunteers welcome
- Sponsor
- Penn State University
Iris Neovascularization, Diabetic Retinopathy
A Pilot Study for the Treatment of Iris Neovascularization With Macugen
The purpose of this study is to determine if a drug called Macugen may help to stop the growth of abnormal blood vessels on the iris that has occurred in the eye(s) as part of diabetic retinopathy.
- Trial name
- NCT00295828
- Testing
- Pegaptanib Sodium Injection/Panretinal Photocoagulation, Panretinal Photocoagulation (PRP)
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Hermann Eye Center
Retinal Vein Occlusion
Intravitreal Ranibizumab Treatment of Central Retinal Vein Occlusion With Macular Edema
The purpose of this study is to examine the effects of Lucentis for active Central Retinal Vein Occlusion with Macular Edema
- Trial name
- NCT00403039
- Testing
- Ranibizumab (Lucentis )
- Where
- United States
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- Vitreous -Retina- Macula Consultants of New York
Diabetic Macular Edema (DME), Diabetic Retinopathy
Corticosteroid for Diabetic Macular Edema (DME) Study
Our current goals include confirming inflammation mediators are biomarkers of DR and DME The Aim of this project is to measure aqueous PGE2 and inflammatory cytokines before and after treatment of DME with intravitreal…
- Trial name
- NCT07843849
- Testing
- Intravitreal dexamethasone implant
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University Medical Center
Diabetic Retinopathy, Age-Related Macular Degeneration (AMD)
Genetics and Markers of Degenerative and Inflammatory Eye Diseases
This study will identify genes that are associated with inflammation or degeneration of the retina (membrane lining the back of the eye that relays vision signals to the brain).
- Conditions
- Diabetic Retinopathy, Age-Related Macular Degeneration (AMD), Uveitis
- Trial name
- NCT00647439
- Where
- United States
- Volunteers
- 609 people, healthy volunteers welcome
- Sponsor
- National Eye Institute (NEI)
Diabetic Retinopathy (DR)
Diabetic Retinopathy Screening Point-of-Care Artificial Intelligence
This research study is being conducted to improve eye care by using artificial intelligence (AI) to make diabetic eye screenings faster and more accessible.
- Trial name
- DRES POCAI (NCT06721351)
- Testing
- Diabetic Retinopathy screening Point of Care Artificial Intelligence
- Where
- 3 sites in United States
- Volunteers
- 548 people, healthy volunteers welcome
- Sponsor
- Centro De Salud La Comunidad De San Ysidro Inc DBA: San Ysidro Health
Dementia Alzheimers, Dementia
Detecting Dementia in the Retina Using Optical Coherence Tomography
This retrospective case control explores the retinal features of dementia associated with neurodegenerative diseases, particularly Alzheimer's disease.
- Conditions
- Dementia Alzheimers, Dementia, Dementia, Vascular, Dementia Senile
- Trial name
- NCT03631069
- Where
- United Kingdom
- Volunteers
- 280,000 people, healthy volunteers welcome
- Sponsor
- Moorfields Eye Hospital NHS Foundation Trust
Diabetic Retinopathy, Dyslipidemia
Dyslipidemia and Diabetic Retinopathy
The purpose of this study is to determine if the reparative cells of blood vessels called endothelial progenitor cells(EPC) are defective in people with diabetes.
- Trial name
- D&D (NCT03403283)
- Testing
- 15 subjects with Non Proliferative Diabetic Retinopathy(mild, moderate and severe). 15 subjects with Proliferative Diabetic Retinopathy, Healthy Controls 15 age matched control subjects
- Where
- United States
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Age-Related Macular Degeneration
The Role of Complement Factor H Polymorphism in the Regulation of Choroidal Vascular Tone in Young Healthy Subjects
Age related macular degeneration (AMD) is a multifactorial disease with a strong genetic component. Given that it is known that impaired regulation of choroidal vascular tone is present in patients with AMD, the current study…
- Trial name
- NCT02102880
- Testing
- the polymerase chain reaction (PCR)
- Where
- Austria
- Volunteers
- 220 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Diabetic Retinopathy
Assessing of Artificial Intelligence-based Software Platform for Diabetic Retinopathy Screening
To examine the potential for the detection of diabetic retinopathy (DR) using the artificial intelligence (AI)-based software platform Retina-AI.
- Trial name
- ARTDR (NCT06879834)
- Testing
- taking fundus photos using non-mydriatic fundus camera
- Where
- Ukraine
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- The Filatov Institute of Eye Diseases and Tissue Therapy
Retinal Vein Occlusions
Single Site, Masked, Randomized, Controlled Study to Assess Efficacy of Osurdex as Adjunct to Avastin Compared With Avastin Alone in the Treatment of Patients With Macular Edema Due to Central or Branch Retinal Vein Occlusion
Comparative study to see if treating with Osurdex in addition to Avastin in patients with retinal vein occlusions helps increased visual acuity outcomes
- Trial name
- NCT01085734
- Testing
- Avastin, Osurdex
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Maturi, Raj K., M.D., P.C.
Diabetic Neuropathies, Diabetic Foot
Thermal Screening for Early Diabetic Peripheral Neuropathy (DPN)
The goal of this research is to develop better tools for diagnosing illness of the feet and legs of people who have diabetes. Investigators will use thermal videos of the foot to aid in the refinement of a system designed to…
- Conditions
- Diabetic Neuropathies, Diabetic Foot, Diabetic Retinopathy
- Trial name
- NCT03069729
- Testing
- no intervention
- Where
- United States
- Volunteers
- 331 people, healthy volunteers welcome
- Sponsor
- VisionQuest Biomedical LLC
Macula Edema, Retinal Vein Occlusion
Near-Infrared Light Photobiomodulation Treatment for Retinal Vein Occlusion Macular Oedema
This pilot study aims to establish that treatment with near infrared light (NIR) reduces cystic macular oedema in patients with a retinal vein occlusion.
- Trial name
- NIRVO (NCT04847869)
- Testing
- Ellex Integre NIR laser
- Where
- Australia
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- University of Sydney
Coronary Heart Disease (CHD)
Using Retinal Photograph Based AI to Predict Incident Coronary Heart Disease
To determine whether an integrated retinal AI decision support can improve predictive accuracy of coronary heart disease (CHD), the investigators are conducting a randomized controlled study of AI guided prediction of CHD…
- Trial name
- DeepCHD Plus (NCT06695273)
- Testing
- AI-derived probability of coronary heart disease., PCEs derived ASCVD risk
- Volunteers
- 1,570 people, healthy volunteers welcome
- Sponsor
- Tsinghua University
Ocular Physiology, Regional Blood Flow
Effects of Vitamin C on Hyperoxia-Induced Reduction of Retinal Blood Flow
High arterial blood oxygen tension leads to vasoconstriction of retinal vessels, possibly related to an interaction between reactive oxygen species and endothelium-derived vasoactive factors.
- Trial name
- NCT00712907
- Testing
- vitamin C (Mayrhofer) 24mg/min i.v. for 64 min, 100% O2 (AGA) two times for 12 min
- Where
- Austria
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
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, Age Related Macular Degeneration
Polarization Perception in Health and Disease. Testing a New Sight Test
A study to assess the utility of human polarization pattern perception for the detection, diagnosis and monitoring of eye disease
- Conditions
- Cataract, Age Related Macular Degeneration, Pseudophakia, Macular Disease
- Trial name
- TaNSiT (NCT03823092)
- Testing
- polarization sensitivity
- Where
- United Kingdom
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- South Warwickshire NHS Foundation Trust