Clinical trials: Retinal Vessels
Eye Disease, Eye Care
Tailored Messages to Increase Eye Examination Behavior
The purpose of this project is to test two different types of health messages, one that is developed for a specific group (targeted) and the other that is more personalized to individuals (tailored), to see which is better at…
- Trial name
- NCT00649766
- Testing
- tailored newsletter, targeted newsletter
- Where
- United States
- Volunteers
- 330 people, healthy volunteers welcome
- Sponsor
- National Eye Institute (NEI)
Central Retinal Vein Occlusion
Retinal Blood Flow in Response to an Intravitreal Injection of Ranibizumab for Central Retinal Vein Occlusion (CRVO)
Ranibizumab (Lucentis, Genentech) is an off-label drug used for the clinical treatment of central retinal vein occlusion, which is one of the most common retinal vascular disorders.
- Trial name
- NCT01303276
- Where
- Canada
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Toronto
Diabetic Retinopathy
ARTIFICIAL INTELLIGENCE FOR MASS SCREENING OF THE DIABETIC RETINOPATHY IN THE CHERNIVTSI REGION (Pilot Study)
The purpose of this study is to create a patient-centric environment for early detection of DR with AI-driven solutions.
- Trial name
- AIMDR (NCT06112691)
- Testing
- taking fundus photos using non-mydriatic fundus camera - FundusScope Rodenstock
- Where
- Ukraine
- Volunteers
- 660 people, healthy volunteers welcome
- Sponsor
- The Filatov Institute of Eye Diseases and Tissue Therapy
Age-Related Macular Degeneration, Geographic Atrophy
Evaluation of the Precision of the Microperimetry Function of the Spectral OCT/SLO
To conduct a precision study to assess the microperimetry function of the Spectral OCT/SLO. The study will assess variability across measurements taken by three different operator-device configuration across clinical sites…
- Conditions
- Age-Related Macular Degeneration, Geographic Atrophy, Diabetic Retinopathy, Macular Edema
- Trial name
- NCT01692938
- Where
- 3 sites in United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Optos, PLC
Vision Impairment and Blindness, Glaucoma
Developing and Testing a Model to Identify Preventive Vision Loss Among Older Patients in General Practice
In this cohort study, the investigators will test vision screenings in Danish general practice for patients over 70 years of age with minimum one chronic condition.
- Conditions
- Vision Impairment and Blindness, Glaucoma, Age-Related Macular Degeneration, Cataract
- Trial name
- DETECT (NCT07015034)
- Testing
- focus on vision impairment in older patients in general practice
- Where
- 2 sites in Denmark
- Volunteers
- 460 people, healthy volunteers welcome
- Sponsor
- University of Copenhagen
Arthritic Psoriasis, Psoriasis (PsO)
Retinal Capillary Vessel Density and Foveal Avascular Zone Size in Patients With Psoriatic Arthritis: A Case-Control Study.
In terms of blood flow per unit of tissue, the retina is one of the tissues with the highest blood flow in the body. Parameters such as the thickness of the choroid layer, which plays a crucial role in maintaining normal eye…
- Conditions
- Arthritic Psoriasis, Psoriasis (PsO), Retinal Vessels
- Trial name
- PsA-RETINA (NCT07858591)
- Testing
- OCTA-SCP, OCTA-DCP, OCTA-RPC
- Where
- Turkey (Türkiye)
- Volunteers
- 135 people, healthy volunteers welcome
- Sponsor
- Bursa Yuksek Ihtisas Training and Research Hospital
Stroke
Adaptive Optics (AO) Analysis of Retinal Arteries in Patients With Recent Stroke (STROKAO)
The eye has long been recognized as a window to pathological processes occurring in the brain. By imaging the vascular system of the retina scientific understanding and clinical practice have been improved for a wide range of…
- Trial name
- STROKAO (NCT04712747)
- Testing
- Ophthalmological examinations, Blood pressure measurement at rest
- Where
- France
- Volunteers
- 91 people, healthy volunteers welcome
- Sponsor
- Fondation Ophtalmologique Adolphe de Rothschild
OCT Angiography, Retinal Microcirculation
Chorioretinal Imaging, Vascular Biomarkers, and Ultra-Trail: A Pilot Study
Retinal and choroidal microcirculation is a relevant biomarker of systemic vascular health and lies at the heart of eye-heart interactions.
- Conditions
- OCT Angiography, Retinal Microcirculation, Choroidal Microcirculation, Physical Exercion
- Trial name
- UTMA-RETINA (NCT07748936)
- Testing
- Retinal imaging evaluation of both eyes without dilation before and after the Mont Afrique Ultra Trail, Retinal imaging evaluation of both eyes without dilation, performed in two stages (T0 and T0+11/24H)
- Where
- France
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Centre Hospitalier Universitaire Dijon
Glaucoma, Retinal Vein Occlusion
Study of the Retinal Vascularization by Laser Doppler Velocimetry Coupled With an Adaptive Optics Camera ( AO-LDV)
The difficulty to measure blood flow in humans is connected with the necessity of using not invasive, reliable and reproducible techniques.
- Trial name
- AO-LDV (NCT03525132)
- Testing
- Laser Doppler Velocimetry + Optic Adaptative Camera
- Where
- France
- Volunteers
- 290 people, healthy volunteers welcome
- Sponsor
- University Hospital, Grenoble
Microvascular Disease, Retinal Disease
Collecting Data on Retinal Blood Blood Flow and Blood Vessel Shape/Appearance Using an Investigational Device, XyCAM CRE, and to Then Compare Those Images With Images Collected From a Patient's Routine Clinical Examination.
The primary objective of the XyCAM CRE Camera Study is to evaluate retinal blood flow, choroidal blood flow, and retinal structural features and their association with the progression and characterization of retinal diseases…
- Trial name
- NCT07641738
- Testing
- XyCAM CRE Imaging
- Where
- United States
- Volunteers
- 350 people, healthy volunteers welcome
- Sponsor
- Stuart Terry Eye Associates
Diabetic Retinopathy
Analysis of Risk Factors of Diabetic Retinopathy
The aim of the study is to analyse the risk factors involved in the development of diabetic retinopathy.
- Trial name
- NCT06154746
- Testing
- slit lamb & OCT
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Assiut University
Diabetic Retinopathy
Video-based Patient Education Intervention for Diabetic Eye Screening in Latinx Communities
An online survey (n=1,500) and 4 focus groups will be conducted with Latinx patients with diabetes (n=20) to obtain preliminary data regarding whether and how patient and clinician video testimonial interventions (n=6) increase…
- Trial name
- NCT06257082
- Testing
- Online Survey
- Where
- United States
- Volunteers
- 1,526 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Age-related Macular Degeneration, Coronary Artery Disease
Ranibizumab and the Risk of Arterial Thromboembolic Events
The investigators assume that ranibizumab might be dangerous in patients with history of coronary artery disease or cerebrovascular events.
- Conditions
- Age-related Macular Degeneration, Coronary Artery Disease, Cerebrovascular Disorders
- Trial name
- RATE (NCT01319188)
- Testing
- 0.5 mg of ranibizumab, 0.5 mg of ranibizumab + photodynamic therapy
- Where
- 2 sites in Netherlands, Russia
- Volunteers
- 380 people, healthy volunteers welcome
- Sponsor
- Ural State Medical University
Intracranial Atherosclerosis
ICAS Screen Based on RIC
Intracranial atherosclerosis stenosis (ICAS) is a leading cause of ischemic stroke worldwide and increase the global burden of stroke, especially in the Asian population.
- Trial name
- RICAS (NCT06610578)
- Testing
- fundus imaging
- Where
- China
- Volunteers
- 2,100 people, healthy volunteers welcome
- Sponsor
- Xuanwu Hospital, Beijing
Macular Holes, Epiretinal Membrane
Intraoperative OCT Guidance of Intraocular Surgery II
The overall five-year goals of the project are to develop novel technology to provide actionable new information through provision of live volumetric imaging during surgery, improving surgical practice and outcomes.
- Conditions
- Macular Holes, Epiretinal Membrane, Diabetic Retinopathy, Retinal Detachment
- Trial name
- MIOCT (NCT03713268)
- Testing
- Microscope integrated optical coherence tomography
- Where
- United States
- Volunteers
- 262 people, healthy volunteers welcome
- Sponsor
- Duke University
Ischemia, Retinal Vein Occlusion
Study of 2.0 mg Ranibizumab in Subjects With Ischemic Central Retinal Vein Occlusion (RAVE2)
The RAVE 2 trial is a phase I, open label, 12-month trial of intravitreal ranibizumab 2.0 mg in patients with ischemic CRVO who have been either previously treated with ranibizumab or treatment naïve.
- Conditions
- Ischemia, Retinal Vein Occlusion, Pathologic Processes, Retinal Diseases
- Trial name
- RAVE2 (NCT01225146)
- Testing
- ranibizumab
- Where
- United States
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- David M. Brown, M.D.
Proliferative Diabetic Retinopathy, Diabetic Macular Edema
Effectiveness of Multimodal Imaging for the Evaluation of Retinal Oedema And New vesseLs in Diabetic Retinopathy
Given the high number of people with DMO and PDR, the need for patients to be seen at short follow-up intervals, the need for frequent treatments and the requirement for long-term follow-up, there is a very large workload in…
- Trial name
- EMERALD (NCT03490318)
- Where
- 13 sites in United Kingdom
- Volunteers
- 401 people, healthy volunteers welcome
- Sponsor
- Belfast Health and Social Care Trust
Branch Retinal Artery Occlusion, Central Retinal Artery Occlusion
Retinal Oxygen Saturation, Blood Flow, Vascular Function and High Resolution Morphometric Imaging in the Living Human Eye
Canadians fear loss of vision more than any other disability. Vision loss has an enormous impact on quality-of-life and is extremely costly from a societal and economic perspective.
- Conditions
- Branch Retinal Artery Occlusion, Central Retinal Artery Occlusion, Branch Retinal Vein Occlusion, Central Retinal Vein Occlusion
- Trial name
- NCT01348633
- Where
- Canada
- Volunteers
- 275 people, healthy volunteers welcome
- Sponsor
- University of Toronto
Primary Open Angle Glaucoma
Electroretinogram and Retinal Vascular Changes After Cataract Surgery
To compare electrophysiological and Optical coherence tomography angiography of optic disc and macula changes after uneventful phacoemulsification between normal and cataractus patients with primary open angle glaucoma.
- Trial name
- NCT05871034
- Testing
- phacoemulsification
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Sohag University
Amblyopia ex Strabismus, Amblyopia ex Anisometropia
Neurovascular Coupling in Subjects With Amblyopia
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, such as strabismus (ocular misalignment) or anisometropia (unequal…
- Trial name
- NCT01746693
- Testing
- Dynamic Vessel Analyzer, Laser Doppler Velocimetry, 7-Tesla MRI
- Where
- Austria
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna