Clinical trials: Retina; Change
Retinal Vascular
Physiologic Change of Posterior Ocular Segment During Pregnancy
Women's physiology changes markedly during normal pregnancy. The most distinct alterations occur in the hormonal and cardiovascular systems. There is a dramatic increase in both estrogen and progesterone.
- Trial name
- NCT04731415
- Testing
- Optical coherence tomography and optical coherence tomography angiography (Optovue®)
- Where
- Thailand
- Volunteers
- 69 people, healthy volunteers welcome
- Sponsor
- Khon Kaen University
Retinopathy of Prematurity
Changes in Vital Signs and Pupil Diameter Related to Pharmacologic Mydriasis in Premature Infants: A Randomized Double Blind Clinical Study
Retinopathy of prematurity (ROP) is one of the common anatomic causes of blindness among Filipinos, accounting for 47.7% of the cases.
- Trial name
- NCT04838665
- Testing
- 0.5% cyclopentolate and 2.5% phenylephrine, 0.5% tropicamide + 0.5% phenylephrine, 0.5% tropicamide + 0.5% phenylephrine with a cotton wick
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University of the Philippines
Familial Mediterranean Fever (FMF), Autoinflammation
Familial Mediterranean Fever and Related Disorders: Genetics and Disease Characteristics
This study is designed to explore the genetics and pathophysiology of diseases presenting with intermittent fever, including familial Mediterranean fever, TRAPS, hyper-IgD syndrome, and related diseases.
- Conditions
- Familial Mediterranean Fever (FMF), Autoinflammation, Periodic Fever, Fever
- Trial name
- NCT00001373
- Where
- 5 sites in United States
- Volunteers
- 5,000 people, healthy volunteers welcome
- Sponsor
- National Human Genome Research Institute (NHGRI)
Cataract, Diabetic Retinopathy
Diabetic Retinopathy and OCT-A Changes Post-cataract Surgery
The purpose of this study is to use optical coherence tomography angiography (OCT-A) to compare retinal vasculature after uncomplicated cataract surgery in patients with and without diabetic retinopathy.
- Conditions
- Cataract, Diabetic Retinopathy, Macular Edema Due to Diabetes Mellitus
- Trial name
- NCT04660006
- Testing
- Cataract surgery
- Where
- Canada
- Volunteers
- 170 people, healthy volunteers welcome
- Sponsor
- Uptown Eye Specialists
Age-Related Macular Changes, Age-Related Macular Degeneration
Effects of Sun Filters on Age-related Macular Degeneration in People With Lens Implants
This study will test a new method for preventing worsening of age-related macular degeneration (AMD) and for developing imaging methods to follow the very earliest microscopic changes in the disease.
- Conditions
- Age-Related Macular Changes, Age-Related Macular Degeneration, Cataract and IOL Surgery, Retinal Photochemistry
- Trial name
- NCT00487838
- Sponsor
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Thyroid Associated Orbitopathy
Changes in Orbital Macrovascular and Intraocular Microvascular Blood Flow After Orbital Decompression Surgery in Patients With Thyroid Eye Disease
This study aims to evaluate the effects of balanced orbital decompression surgery in patients with inactive thyroid-associated orbitopathy.
- Trial name
- BOD-VASC (NCT07393230)
- Testing
- Balanced Orbital Decompression Surgery
- Where
- Turkey (Türkiye)
- Volunteers
- 15 people
- Sponsor
- Marmara University Pendik Training and Research Hospital
Epiretinal Membranectomy
Change of Retinally-Induced Aniseikonia in Patients With Epiretinal Membrane After Vitrectomy
Epiretinal membrane is common disease, affecting 5~10 % incidence over 60 years old population. It reduce visual acuity, cause metamorphopsia.
- Trial name
- NCT01901406
- Where
- South Korea
- Volunteers
- 24 people
- Sponsor
- Yonsei University
Diabetic Retinopathy
Lucentis (Ranibizumab) in Diabetic Macular Oedema: a Treatment Evaluation
This exploratory study will compare the effects of ranibizumab treatment with conventional macular laser therapy for patients with diabetic macular oedema.
- Trial name
- LUCIDATE (NCT01223612)
- Testing
- Ranibizumab, Modified ETDRS laser
- Where
- United Kingdom
- Volunteers
- 37 people
- Sponsor
- Moorfields Eye Hospital NHS Foundation Trust
Macular Holes
Macular Micro Vascular Changes Following Macular Hole Repair : Optical Coherence Tomography Angiography Study
The goal of this prospective interventional study is to to compare the micro vascular and structural changes between surgery with and without ILM flap to repair macular hole.
- Trial name
- NCT06233500
- Testing
- pars plana vitrectomy
- Where
- Egypt
- Volunteers
- 28 people
- Sponsor
- Fayoum University
Pregnancy, Retinal Nerve Fiber Layer Thickness
Retinal Nerve Fiber Layer and Macular Thickness Changes During Pregnancy
Purpose: Primary: to prospectively measure Retinal Nerve Fiber Layer (RNFL) and macular thickness changes during pregnancy by Optical coherence tomography Secondary: The effect of pregnancy abnormalities on RNFL and macular…
- Conditions
- Pregnancy, Retinal Nerve Fiber Layer Thickness, Macular Thickness
- Trial name
- NCT02154945
- Where
- Israel
- Volunteers
- healthy volunteers welcome
- Sponsor
- The Baruch Padeh Medical Center, Poriya
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
Optic Neuritis
Effect of Vitamin D on Retinal Changes in Patient With Optic Neuritis by Optic Coherence Tomography
This study examines the effect of vitamin D on Retinal changes in patient with optic Neuritis.
- Trial name
- NCT01465893
- Testing
- Vitamin D, Vitamin D withheld
- Where
- Iran
- Volunteers
- 60 people
- Sponsor
- Isfahan University of Medical Sciences
Retinopathy of Prematurity
Infant-parent Skin-to-skin Contact During Screening for Retinopathy
Retinopathy of prematurity (ROP) is a feared complication of premature birth. If discovered in time, the disease can be treated, and impaired vision or blindness can be reduced.
- Trial name
- NCT02780544
- Testing
- skin-to-skin contact, incubator, Sucrose
- Where
- Norway
- Volunteers
- 34 people
- Sponsor
- St. Olavs Hospital
Retinal Vascular
Physiologic Changes of Posterior Ocular Segment During the Menstrual Cycle
Changes of luteinizing hormone (LH), estrogen and progesterone during the menstrual cycle influence the ocular physiology in both anterior and posterior segments.
- Trial name
- NCT04731207
- Testing
- Optovue®
- Where
- Thailand
- Volunteers
- 39 people, healthy volunteers welcome
- Sponsor
- Khon Kaen University
Primary Open Angle Glaucoma
Retinal Vascular Changes in Primary Open Angle Glaucoma Patients
the study aims to detect ischemic changes in macula using OCT angiography in primary open angle glaucoma patients correlating with glaucoma staging system II by visual field.
- Trial name
- NCT05351307
- Where
- Egypt
- Volunteers
- 100 people
- Sponsor
- Sohag 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
Acute Demylelinating Optic Neuritis
Fingolimod (FTY720) in Acute Demyelinating Optic Neuritis (ADON)
To evaluate the efficacy and safety of fingolimod 0.5mg versus placebo in patients with suspected acute demyelinating optic neuritis (ADON) receiving standard steroid treatment
- Trial name
- NCT01757691
- Testing
- Fingolimod 0.5mg/daily
- Where
- 2 sites in United States, Spain
- Volunteers
- 2 people
- Sponsor
- Novartis Pharmaceuticals
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
Type 1 Diabetes, Diabetic Retinopathy
Microvascular Changes in OCT-angiography in Type 1 Diabetes Mellitus at the Onset of the Disease and After Optimization of Glycemic Control.
The objective of the study is to evaluate the differences in the retinal microcirculation measured by OCT-Angiography in patients with type 1 diabetes between the diagnosis of the disease and after 3 months of insulin treatment.
- Trial name
- NCT04888598
- Testing
- Optical Coherence Tomography (OCT) Angiography
- Where
- 2 sites in Spain
- Volunteers
- 20 people
- Sponsor
- Fundació Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau
Vitiligo, Chorioretinopathy
Ocular Changes in Vitiligo Patients on Therapy
Vitiligo patients on systemic and local therapy may have some ocular adverse effects associated with the disease and its therapy.
- Conditions
- Vitiligo, Chorioretinopathy, Chorioretinitis
- Trial name
- NCT05335746
- Testing
- Optical coherence tomography angiography (OCT-A)
- Where
- Egypt
- Volunteers
- 100 people
- Sponsor
- Benha University