Clinical trials: Retinal Function
Diabetic Macular Oedema
Quantification of Rising the Osmotic Pressure in Diabetic Intraretinal Fluid Accumulation (Diabetic Macular Oedema)
Diabetic macular oedema is characterized by fluid accumulation in the retinal tissue from leaking retinal vessels, the capillaries. This state can lead to severe visual loss and blindness.
- Trial name
- NCT00333671
- Testing
- Glycerol
- Where
- Denmark
- Volunteers
- 15 people
- Sponsor
- Glostrup University Hospital, Copenhagen
Retinitis Pigmentosa, Stargardt Macular Dystrophy
Development and Evaluation of Functional Visual Field and Navigation Endpoints in Moderate to Profound Inherited Retinal Disease (DEFINE-IRD)
The Vision Research and Assessment Institute (VRAI) was established with the purpose of serving as a testing facility for efficacy endpoints for patients with Low Vision.
- Conditions
- Retinitis Pigmentosa, Stargardt Macular Dystrophy, Stargardt Disease, Geographic Atrophy From Age-related Macular Degeneration
- Trial name
- DEFINE-IRD (NCT07502664)
- Where
- United States
- Volunteers
- 25 people
- Sponsor
- Ray Therapeutics, Inc.
Rare Disorders, Undiagnosed Disorders
Rare Disease Patient Registry & Natural History Study - Coordination of Rare Diseases at Sanford
The Coordination of Rare Diseases at Sanford (CoRDS) is an international patient registry that serves as a centralized resource for rare disease research.
- Conditions
- Rare Disorders, Undiagnosed Disorders, Disorders of Unknown Prevalence, Cornelia De Lange Syndrome
- Trial name
- CoRDS (NCT01793168)
- Where
- United States
- Volunteers
- 20,000 people
- Sponsor
- Sanford Health
Epimacular Membrane
Outcomes Based on the Pre-operative Integrity of IS/OS Junction in Idiopathic Epimacular Membrane Surgery
The aim of this study is to evaluate whether the pre-operative integrity or not of the inner segment (IS) and outer segment (OS) photoreceptoral junction may influence the post-operative visual acuity, the macular morphology…
- Trial name
- NCT04158791
- Testing
- pars plana vitrectomy with epimacular membrane removal and internal limiting membrane peeling
- Where
- Italy
- Volunteers
- 18 people
- Sponsor
- Fondazione IRCCS Policlinico San Matteo di Pavia
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
Rhegmatogenous Retinal Detachment
Comparison of Anatomical and Functional Outcomes of Laser Photocoagulation and Cryopexy in Patients with Rhegmatogenous Retinal Detachment Treated with Pneumatic Retinopexy
Rhegmatogenous Retinal Detachment is a pathological condition in which the inner layers of the retina separate from its outermost layer due to fluid entering between these layers through a retinal tear.
- Trial name
- NCT06694259
- Testing
- Pneumatic retinopexy with transscleral cryopexy, Pneumatic retinopexy with laser photocoagulation
- Where
- Croatia
- Volunteers
- 40 people
- Sponsor
- Clinical Hospital Center, Split
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)
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
Rhegmatogenous Retinal Detachment, Retinal Detachment
Anatomical and Functional Outcomes of Pneumatic Retinopexy for Retinal Detachment: A 2-Year Case Series
The goal of this observational study is to evaluate the 2-year anatomical and functional outcomes of pneumatic retinopexy in phakic adult patients with superior rhegmatogenous retinal detachment meeting adapted PIVOT eligibility…
- Trial name
- NCT07794163
- Testing
- Pneumatic Retinopexy
- Where
- Colombia
- Volunteers
- 33 people
- Sponsor
- Clinica Oftalmologica Paredes
Electroretinography
The Electroretinogram in Healthy and Glucose Intolerant Young Men
The purpose is to investigate the electroretinogram (ERG) in young, healthy men in the normoglycaemic and hyperglycaemic state before and after intervention with corticosteroids treatment, high calorie diet and exercise restraint.
- Trial name
- NCT01140932
- Testing
- Prednisolone, Lifestyle change
- Where
- Denmark
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Glostrup University Hospital, Copenhagen
Diabetic Retinopathy, Melatonin
Diabetic Retinopathy: Effects of Melatonin Treatment on Visual Functions and Circadian Rhythm
This study evaluates the effect of melatonin 4 mg on circadian rhythm and visual function of patients with diabetes mellitus. Half of the patients will receive melatonin (arm-1) and the other half will receive placebo (arm-2)…
- Conditions
- Diabetic Retinopathy, Melatonin, Circadian Dysrhythmia, Circadian Rhythm Sleep Disorder, Unspecified Type
- Trial name
- NCT03478306
- Testing
- Melatonin 4 mg Tablet
- Where
- Denmark
- Volunteers
- 31 people
- Sponsor
- Glostrup University Hospital, Copenhagen
Central Serous Chorioretinopathy
Comparison of Multifocal Electroretinogram Assessment in Chronic Central Serous Chorioretinopathy (CSC) Between Laser Treatment Group and Photodynamic Therapy Group in Chronic Central Serous Chorioretinopathy
This study is a comparison of multifocal electroretinogram assessment between the laser treatment group and the photodynamic therapy group in chronic central serous chorioretinopathy.
- Trial name
- NCT00803517
- Where
- South Korea
- Volunteers
- 24 people
- Sponsor
- Samsung Medical Center
Rhegmatogenous Retinal Detachment
Anatomical and Functional Macular Changes in Retinal Detachment
The purpose of this study is to evaluate the correlation between morphologic changes in the outer retina and visual function after successful repair of rhegmatogenous retinal detachment with macula off.
- Trial name
- NCT01343134
- Testing
- Measure the outer retina by spectral domain optical coherence tomography (HRA Spectralis; Heidelberg), and microperimetry (OPKO Instruments)
- Where
- France
- Volunteers
- 30 people
- Sponsor
- Centre Hospitalier Universitaire Dijon
Macular Hole
Microperimetry and Optical Coherence Tomography (OCT) in Idiopathic Macular Hole
To evaluate the correlations between anatomical and functional changes studied with microperimetry (MPM) and spectral-domain OCT (SD-OCT) in patients after successful repair of idiopathic macular hole (MH).
- Trial name
- NCT01757600
- Testing
- Microperimetry
- Where
- France
- Volunteers
- 23 people
- Sponsor
- Centre Hospitalier Universitaire Dijon
Ocular Physiology, Retina
Is There a Difference in Flicker Induced Vasodilatation Between Smokers and Non-Smokers?
Habitual smoking is associated with an increased risk of coronary artery disease, cerebral and peripheral vascular disease, including ocular diseases like age-related macular degeneration or diabetic retinopathy.
- Conditions
- Ocular Physiology, Retina, Blood Flow Velocity
- Trial name
- NCT00431730
- Testing
- flicker light stimulation
- Where
- Austria
- Volunteers
- healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Proliferative Diabetic Retinopathy, Vitrectomy
Macular Appearance After Diabetic Vitrectomy
Vitrectomy is one of the major treatment methods for complications of diabetic retinopathy. As surgical techniques and instruments improve, high anatomical success may be achieved; however, functional results are less favorable.
- Trial name
- NCT00737022
- Where
- Taiwan
- Volunteers
- 108 people
- Sponsor
- National Taiwan University Hospital
Retinal Dystrophy, Cone-Rod, Cone Dystrophy
Study of New Mutations in Cone Disorders
High throughput sequencing gives the opportunity to improve the genetic diagnosis for patients suffering from retinal dystrophies and specially from cone disorders.
- Conditions
- Retinal Dystrophy, Cone-Rod, Cone Dystrophy, Cone Rod Dystrophy, Macular Degeneration
- Trial name
- INTROCONE (NCT04658251)
- Testing
- Blood and/or skin biopsy
- Where
- France
- Volunteers
- 7 people
- Sponsor
- University Hospital, Lille
Diabetes, Diabetic Retinopathy
Diabetic Retinopathy Functional Evaluation Study: Monitoring Carotenoid Vitamins Treatment Using ERG
To evaluate the differences in retinal function as measured by ERG in diabetics with and without retinopathy 2) the ability of the Chromatic Electroretinogram (chERG) to detect changes in global retinal function following…
- Trial name
- NCT04117022
- Testing
- DVS supplementation
- Where
- 2 sites in United States
- Volunteers
- 45 people
- Sponsor
- ZeaVision, LLC
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
Epiretinal Membrane
Outcomes of Vitrectomy Combined With Subtenon Triamcinolone Injection for the Idiopathic Epiretinal Membrane
This study compares the anatomical and visual outcomes of patients with idiopathic epiretinal membrane(ERM) treated by vitrectomy and membrane peeling with or without subtenon triamcinolone acetonide injection
- Trial name
- NCT01630876
- Testing
- Vitrectomy only group, Combined therapy group
- Where
- South Korea
- Volunteers
- 50 people
- Sponsor
- Yeungnam University College of Medicine