Clinical trials: Retina; Change
Retinal Disease, Healthy Population
Multifocal Electroretinogram in Normal Egyptian Population
Studying normal subjects to create unique normal database for multifocal electroretinogram (mf-ERG) in specific population.
- Trial name
- NCT05323032
- Testing
- Multifocal electroretinogram (mf-ERG) by electroretinogram device
- Where
- Egypt
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Benha University
Retinal Evaluation in Patients With GDM.
EVALUATION OF THE MACULAR, PERIPAPILLARY NERVE FIBER LAYER AND CHOROID THICKNESS CHANGES IN THE GESTATIONAL DIABETES MELLITUS, HEALTHY PREGNANT AND WOMEN VOLUNTEERS.
Gestational diabetes mellitus (GDM) is a risk factor for the development of type II diabetes and it is responsible for the morbidity of both mother and child.
- Trial name
- NCT02035995
- Testing
- Pregnant volunteers with GDM
- Where
- Turkey (Türkiye)
- Volunteers
- 76 people, healthy volunteers welcome
- Sponsor
- Kayseri Education and Research Hospital
Diabetic Retinopathy, Neurodegeneration
Glycemic Control and Retinal Microvascular Changes
The goal of this prospective, observational study is to compare in the association of glycemic control and retinal microvascular changes in patients with type 2 diabetes mellitus (T2DM) without diabetic retinopathy (DR).
- Conditions
- Diabetic Retinopathy, Neurodegeneration, Blood Sugar; High
- Trial name
- NCT06150495
- Where
- South Korea
- Volunteers
- 259 people, healthy volunteers welcome
- Sponsor
- Seoul National University Hospital
Retinal Artery Occlusion, Retinal Vein Occlusion
Changes in the Diameter of Retinal Vessels After Remote Ischemic Conditioning
Remote ischemic conditioning (RIC) is a therapeutic strategy for protecting organs or tissue against the detrimental effects of acute ischemia-reperfusion injury.
- Trial name
- NCT02898480
- Testing
- Remote ischemic conditioning
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Fasting, Intermittent, Fasting Hypoglycemia
Electrophysiological Changes With Diet.
Dietary habits may affect our body by certain mechanisms, visual sense is one of the most vital human senses that needs special attention in our daily habits.
- Conditions
- Fasting, Intermittent, Fasting Hypoglycemia, Fasting, Obesity
- Trial name
- NCT05658991
- Testing
- Retinal electrophysiology
- Where
- Egypt
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Benha University
Retina; Change
Adaptation Time Required for the Optimisation of Maia Microperimetry Visual Field Testing
Microperimetry is a relatively new and extremely sensitive method of assessing visual function. It projects light stimuli onto a defined area of the retina to map retinal perceptual thresholds.
- Trial name
- NCT02729818
- Where
- United Kingdom
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of Oxford
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
- 1,811 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Glaucoma, Macular Pucker
Prospective Retinal and Optic Nerve Vitrectomy Evaluation (PROVE) Study
Since the introduction of vitrectomy in 1971, this procedure has become the third most frequently performed ophthalmic surgery. Approximately 225,000 vitrectomies are performed annually in the United States and indications…
- Conditions
- Glaucoma, Macular Pucker, Macula Hole, Vitreomacular Traction
- Trial name
- PROVE (NCT01162356)
- Where
- United States
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University
Retinal Vascular, Retinal Disease
Perifoveal Vascular Network Assessed by OCT-Angiography in Type I Diabetes Mellitus
This study is directed to evaluate the role of Optical Coherence Tomography Angiography (OCT-A) in the evaluation of the perifoveal vascular network in type 1 diabetic patients, and to investigate the relationship between…
- Conditions
- Retinal Vascular, Retinal Disease, Retinal Ischemia, Retinal Ischaemia Due to Type 1 Diabetes Mellitus
- Trial name
- NCT03422965
- Testing
- Optical Coherence Tomography Angiography, Blood test, Urine test
- Where
- 2 sites in Spain
- Volunteers
- 600 people, healthy volunteers welcome
- Sponsor
- Hospital Clinic of Barcelona
Eye Diseases, Hereditary
Fundus Changes in the Microphthalmy Eyes
The goal is to describe the fundamental aspects of fundoscopic eye in patients with microphthalmia
- Trial name
- NCT00811512
- Volunteers
- 3 people, healthy volunteers welcome
- Sponsor
- Hospital de Olhos Sadalla Amin Ghanem
Peripheral Retinal Degenerations, Age Related Macular Degeneration Polymorphisms
The Association of the Peripheral Retinal Changes and Genotypic Changes in Patients With Age Related Macular Degeneration
Purpose: To examine the genotypes associated with the peripheral retinal phenotypic features in patients with age-related macular degeneration documented with wide-field imaging. Design: Clinic-based case series study in Croatia.
- Trial name
- NCT03492853
- Testing
- DNA extraction and sequencing
- Volunteers
- 310 people, healthy volunteers welcome
- Sponsor
- University Hospital Sestre Milosrdnice
Myopia, Myopia; Refractive Error
Peripheral Relative Refractive Power of Orthokeratology Lenses
Orthokeratology (OK) has been demonstrated to be an effective intervention for slowing axial elongation in children with myopia.
- Trial name
- NCT07294404
- Testing
- orthokeratology
- Where
- China
- Volunteers
- 53 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
Migraine
Retinal Nerve Fiber Layer Thickness Changes in Migraine: A Meta-Analysis of Case-control Studies
Optical coherence tomography (OCT) is a non-invasive retinal imaging technology that can provide high-resolution cross-sectional images of the peripapillary retinal nerve fiber layer (RNFL) and measure its thickness.
- Trial name
- NCT02196532
- Testing
- Device: Optical coherence tomography
- Where
- China
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Yifan Feng
Graves' Ophthalmopathy
Retinal Oxygen Saturation in Patients With Graves' Ophthalmopathy and in Normal People
Find if the retinal function is affected in both the nonsevere and the severe stage of Graves' ophthalmopathy (GO) by comparing the retinal oxygen saturation of GO patients with that of normal people.
- Trial name
- NCT02290704
- Where
- China
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Sun Yat-sen University
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
Pre Diabetes, Vascular Stiffness
Dietary Exchanges With Avocado and Mango in Pre-diabetes
The research is designed as a randomized, 2-arm, parallel, controlled, human clinical trial to investigate the effects of avocado and mango consumption for 8 weeks on indices of macro- and micro- vascular function in individuals…
- Conditions
- Pre Diabetes, Vascular Stiffness, Vascular Dilation, Cognitive Change
- Trial name
- AVMa (NCT05353790)
- Testing
- Meals + snacks: control, Meals + snacks: Avocado mango
- Where
- United States
- Volunteers
- 82 people, healthy volunteers welcome
- Sponsor
- Clinical Nutrition Research Center, Illinois Institute of Technology