Clinical trials: Retinal Vessels
Erectile Dysfunction
Fundus Oculi and Erectile Dysfunction
The purpose of this study is to evaluate the correlation between fundus oculi's vascularization in patients with erectile dysfunction and not, and, in the same patients, before and after using drugs for ED.
- Trial name
- NCT02845765
- Testing
- Dynamic Vessel Analyzer (DVA), Phosphodiesterase type 5 Inhibitor (PDE5I)
- Where
- Italy
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Ospedale San Raffaele
Age - Related Macular Degeneration (AMD), Diabetic Macular Edema
Wide Field OCTA in Ocular Diseases
The main retinal diseases, whether or not associated with specific mutations genetic, cause progressive degeneration of vascular retinal structures and not vascular, resulting in decreased visual function.
- Conditions
- Age - Related Macular Degeneration (AMD), Diabetic Macular Edema, Diabetic Retinopathy, Myopia
- Trial name
- WOOD-2025 (NCT07298174)
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- IRCCS San Raffaele
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.
Cerebral Small Vessel Diseases, Retinopathy
Cognitive Impairment, Retinopathy, and Cerebrovascular Lesions in the Elderly
The CIRCLE study is a single-center prospective observational study that enrolled individuals with cerebral small vessel disease (SVD), while free of known dementia or stroke (both cerebral infarction and hemorrhage).
- Conditions
- Cerebral Small Vessel Diseases, Retinopathy, Cognitive Dysfunction
- Trial name
- CIRCLE (NCT03542734)
- Testing
- multimodal magnetic resonance imaging
- Where
- China
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Second Affiliated Hospital, Zhejiang University, School of Medicine
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
no Obvious Abnormalities, Diabetic Retinopathy (DR)
Retinal Clinical Assessment With AI-derived Quantitative Information
This randomized controlled trial evaluates whether providing clinicians with AI-derived quantitative retinal information improves the quality and efficiency of retinal clinical assessment.
- Conditions
- no Obvious Abnormalities, Diabetic Retinopathy (DR), AMD, Cup-to-disc Ratio Bigger Than 0.5
- Trial name
- NCT07291960
- Testing
- AI-derived retinal quantitative information-assisted reporting
- Volunteers
- 29 people, healthy volunteers welcome
- Sponsor
- Beijing Tongren Hospital
Diabetic Retinopathy
OCTA in Epivascular Glia After Dex Implant
The aim of this prospective study was for the first time, to analyze specific morphologic features in diabetic eyes with macular oedema, such as changes of the foveal avascular zone and the presence of epivascular glia, and see…
- Trial name
- NCT05600179
- Testing
- Dexamethasone intravitreal implant
- Where
- Italy
- Volunteers
- 38 people, healthy volunteers welcome
- Sponsor
- Federico II University
Amyotrophic Lateral Sclerosis (ALS), Angina, Stable
Quest to Analyze One Thousand Humans Meditating
This study will be focused on assessing the molecular, physiological, and emotional correlates of an intensive meditation experience in the context of a retreat setting in a large 2000 plus-person cohort comprised of healthy and…
- Conditions
- Amyotrophic Lateral Sclerosis (ALS), Angina, Stable, Anxiety, Asthma
- Trial name
- QUANTUM (NCT06583395)
- Testing
- Advanced multi-component meditation practice
- Where
- United States
- Volunteers
- 3,000 people, healthy volunteers welcome
- Sponsor
- Tobias Moeller-Bertram
Diabetes, Retinopathy
Microvascular Reactivity.
This study attempts to test capillary responses to various challenges without the need for iontophoresis (electrical current).
- Conditions
- Diabetes, Retinopathy, Vascular Pathology
- Trial name
- NCT00259701
- Testing
- Laser Doppler Flowmetry with topical acetylcholine and nitroglycerin
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Yale University
Age Related Macular Degeneration, Glaucoma
Prospective Study Phase: 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
- Age Related Macular Degeneration, Glaucoma, Diabetic Retinopathy.
- Trial name
- NCT01348672
- Where
- Canada
- Volunteers
- 381 people, healthy volunteers welcome
- Sponsor
- University of Toronto
Genetic Polymorphism, Macular Degeneration
Does Complement Factor H Gene Polymorphism Play a Role in the Regulation of Vascular Tone in the Choroid?
Age related macular degeneration (AMD) is a multifactorial disease with a strong genetic component. Most importantly a genetic polymorphism in the gene encoding for the complement factor H (CFH) has been recently identified which…
- Conditions
- Genetic Polymorphism, Macular Degeneration, Regional Blood Flow, Ocular Physiology
- Trial name
- NCT00708929
- Testing
- Squatting
- Where
- Austria
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Adolescent, Adult
Prospective Clinical Study of Retinal Microvascular Alteration After ICL Implantation
To observe the retinal microvascular alteration during 3 months follow-up after Implantable Collamer Lens (ICL) operation in moderate and high myopia patients using quantitative optical coherence tomography angiography (OCTA)…
- Conditions
- Adolescent, Adult, Human, Male
- Trial name
- NCT04443231
- Testing
- Optical Coherence Tomography Angiography
- Where
- China
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Peking University Third Hospital
Diabetes Complications, Diabetic Retinopathy
Human iPSC for Repair of Vasodegenerative Vessels in Diabetic Retinopathy
This study proposes to carefully examine the hypothesis that human inducible pluripotent stem cells (iPSCs) can be effectively employed as a future therapeutic option for individuals with diabetic retinopathy and macular…
- Trial name
- iPSC (NCT03403699)
- Testing
- Generation of inducible pluripotent stem cells
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Preeclampsia (PE), Hypertension ,Pregnancy
Retinal and Choroidal Microcirculation in Preeclampsia: An OCTA Study
Preeclampsia is a multisystemic and multifactorial disorder that complicates pregnancy and is characterized by new-onset hypertension after the 20th week of gestation accompanied by proteinuria or systemic findings such as renal…
- Conditions
- Preeclampsia (PE), Hypertension ,Pregnancy, Retinal Microvascular Changes, Hypertensive Disorders of Pregnancy
- Trial name
- PE-OCTA (NCT07874191)
- Where
- Turkey (Türkiye)
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Muğla Sıtkı Koçman University
Retinal Vein Occlusion, Macular Edema
Efficacy of an Intravitreal DEX Implant in Retinal Vein Occlusion Following Treatment With Anti-VEGF Injections.
To test the efficacy of a 0.7 mg intravitreal dexamethasone implant (Ozurdex®) on macular function and recalcitrant macular edema associated with retinal vein occlusion following treatment with 2 or more prior intravitreal…
- Trial name
- NCT01449682
- Testing
- Ozurdex
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Retina Macula Institute
Hypertension
Hypertension and Retinal Microvascular Dysfunction
Hypertension is a worldwide health care burden that affects the structure and function of the macro- and microcirculation. Non-invasive vascular biomarkers are essential to timely diagnose end organ damage to improve…
- Trial name
- HyperVasc (NCT04763005)
- Testing
- HIIT exercise intervention, Physical activity recommendations
- Where
- Switzerland
- Volunteers
- 85 people, healthy volunteers welcome
- Sponsor
- University of Basel
Diabetic Retinopathy
Correlation Between HBA1c Level and Thickness of Both Macula and Choroid in Patients With Type 2 Diabetes Mellitus
Diabetic retinopathy (DR) is a frequent cause of visual impairment, and the leading cause of blindness in those of working age, but it develops silently along years, producing symptoms only in late stages.
- Trial name
- NCT05778370
- Testing
- Swept Source Optical Coherence Tomography(Topcon DRI Triton)
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Assiut University
Retinal Vein Occlusion, Macular Edema
Bevacizumab Versus Ranibizumab in Treatment of Macular Edema From Vein Occlusion
Antagonists of the vascular endothelial growth factor (VEGF) pathway are effective in treating macular edema resulting from retinal vein occlusion (RVO).
- Trial name
- CRAVE (NCT01428388)
- Testing
- Intravitreal injection of bevacizumab, Intravitreal injection of ranibizumab (0.5 mg per dose)
- Where
- United States
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Barnes Retina Institute
Conjunctivitis, Glaucoma
Feasibility Study and Preliminary Application Study on Iris OCTA
All participants will underwent imaging using the OCTA system (Zeiss) with the anterior segment optical adaptor lens. The main outcomes are iris blood flow density and vascular density.
- Conditions
- Conjunctivitis, Glaucoma, Myopia, Diabetic Retinopathy
- Trial name
- NCT03631108
- Testing
- OCTA (ZEISS)
- Volunteers
- 4,000 people, healthy volunteers welcome
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
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