Clinical trials: Retina; Change
Retinitis Pigmentosa (RP)
Prospective, Randomized, Sham-controlled, Dose-finding I/II Trial of Safety and Efficacy of Modified Optogenetic Gene Therapy (ZM-02 Injection)
This is a Phase 1/2, multi-center, randomized, sham-controlled, dose-escalation study evaluating ZM-02 in patients with advanced retinitis pigmentosa (RP).
- Trial name
- PRISM (NCT07282457)
- Testing
- ZM-02 (low dose), ZM-02 (high dose), ZM-02 (selected dose)
- Volunteers
- 21 people
- Sponsor
- Zhongmou Therapeutics
Cataracts, Corneal Edema
Study of Difluprednate vs. Prednisolone Acetate on Visual Acuity, and Corneal Edema Following Cataract Surgery.
The purpose of this clinical research study is to investigate the efficacy of predosing patients undergoing cataract surgery with the potent corticosteroid difluprednate ophthalmic emulsion 0.05% compared to prednisolone acetate…
- Conditions
- Cataracts, Corneal Edema, Retinal Structural Change, Deposit and Degeneration, Visual Acuity Reduced Transiently
- Trial name
- NCT01244334
- Testing
- Difluprednate ophthalmic emulsion 0.05%, Prednisolone acetate 1%
- Where
- 3 sites in United States
- Volunteers
- 52 people
- Sponsor
- Edward J. Holland
Epiretinal Membrane
Effect of Air-tamponade on Intraretinal Cystoid Changes After Membrane Peeling
Patients with intraretinal cystoid changes before scheduled membrane peeling for epiretinal membranes are included. Patients are randomized for balanced salt solution (BSS) or air-tamponade.
- Trial name
- NCT03457584
- Testing
- air arm, BSS arm
- Where
- Austria
- Volunteers
- 96 people
- Sponsor
- Vienna Institute for Research in Ocular Surgery
Myopia
Investigation of the Regulation of Retinal and Choroidal Blood Vessels in Various AL Based on WF SS-OCTA Detection With Changes in Body Position
This prospective observational study aims to understand the effects of different subaxial body positions on choroidal and retinal blood vessel density.
- Trial name
- NCT06587776
- Volunteers
- 60 people
- Sponsor
- Science and Technology Department of Sichuan Province
Pigmentary Retinopathy
Mobility Protocol Adapted for Advanced Visually Impaired Subjects
Retinitis Pigmentosa is characterized by a progressive disappearance of photoreceptors, responsible for a progressive and severe loss of vision.
- Trial name
- PROMA (NCT04419285)
- Testing
- Locomotion task, Posturology task SOT (Sensory Organization Test), The quality of life questionnaire
- Where
- France
- Volunteers
- 50 people
- Sponsor
- Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts
COVID-19
Retinal Vascular Changes in Patients After Coronavirus Disease 2019 (COVID-19)
The study examines changes in retinal oximetry in patients after COVID-19 disease. It aims to analyze and quantify possible retinal microvascular abnormalities that may result from possible post-inflammatory damage to the…
- Trial name
- NCT05747547
- Testing
- Central visual acuity, Intraocular pressure measurement, Slit lamp examination
- Where
- Czechia
- Volunteers
- 34 people
- Sponsor
- University Hospital Olomouc
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
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
Pituitary Adenoma
Long-term Follow up for Retinal Vascular Changes After Endoscopic Endonasal Pituitary Surgery.
This study investigates the retinal vascular features, using optical coherence tomography angiography, in patients during one year's follow up after the endoscopic endonasal surgery to remove an intra-suprasellar pituitary…
- Trial name
- NCT04546386
- Testing
- Endoscopic endonasal pituitary surgery
- Where
- Italy
- Volunteers
- 14 people
- Sponsor
- Federico II University
Presence of Retinal Fluid, Changes in Macular Pigment Optical Density
Aflibercept 8 mg for nAMD: Early Anatomical and Functional Changes
Neovascular age-related macular degeneration (nAMD) is one of the main causes of irreversible vision loss in older people worldwide.
- Trial name
- NCT07074054
- Where
- Italy
- Volunteers
- 40 people
- Sponsor
- Federico II University
Retina; Change, Intraocular Pressure
Changes After Suprachoroidal Injection.
Changes after suprachoroidal injection are analyzed for statistical analysis.
- Conditions
- Retina; Change, Intraocular Pressure, Cataract, Macular Edema
- Trial name
- NCT05288192
- Testing
- Suprachoroidal triamcinolone acetonide (SCTA) injection
- Where
- Egypt
- Volunteers
- 30 people
- Sponsor
- Benha University
Dry AMD
Morpho-functional Changes After Oral Supplementation of Antioxidants and Anti-inflammatory Treatment in Age-Related Macular Degeneration.
In patients with AMD a deterioration of the antioxidant mechanisms of the retina is observed and therefore an increase in the production of free radicals responsible for tissue damage.
- Trial name
- MACUPREV (NCT03919019)
- Testing
- Macuprev Group
- Where
- Italy
- Volunteers
- 30 people
- Sponsor
- Fondazione G.B. Bietti, IRCCS
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
Carotid Stenosis
Chorioretinal Vascularization and Electrophysiological Changes After Carotid Revascularization
The aim of the study is to evaluate changes in retinal function by means of electro-functional examinations of the retina and to associate them with any changes in chorioretinal vascular density occurring in the ipsilateral eye…
- Trial name
- CAS-AOCT (NCT05835869)
- Testing
- Optical coherence tomography angiography and pattern electroretinogram
- Where
- Italy
- Volunteers
- 30 people
- Sponsor
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS
Macular Edema, Cystoid
Intraretinal Cystoid Changes After Vitrectomy With Membrane Peeling
Aim of the study is to assess the rate of postoperative intraretinal cystoid changes after pars plana vitrectomy with membrane peeling and peribulbar application of triamcinolone acetonide and to examine possible risk factors for…
- Trial name
- NCT04472039
- Testing
- optical coherence tomography (OCT)
- Where
- Austria
- Volunteers
- 40 people
- Sponsor
- Vienna Institute for Research in Ocular Surgery
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
Erectile Dysfunction Following Radical Prostatectomy
Study of Retinal and Choriocapillary Vascular Changes in Patients Undergoing Tadalafil 20mg for More Than 6 Months
This study evaluates the retinal and choriocapillary vascular features in patients under the effects of Tadalafil 20mg for more than 6 months, using optical coherence tomography angiography.
- Trial name
- NCT04491773
- Testing
- Tadalafil 20 MG
- Where
- Italy
- Volunteers
- 54 people
- Sponsor
- Federico II University
Central Serous Chorioretinopathy
Central Serous Chorioretinopathy Treated by Modified Photodynamic Therapy
The purpose of this study is to evaluate the effectiveness as well as the detrimental influence of half-dose and half-fluence modification of verteporfin photodynamic therapy (PDT) for the treatment of prolonged unresolved…
- Trial name
- NCT01019668
- Testing
- Verteporfin PDT, half-dose, verteporfin PDT, half-fluence
- Where
- Taiwan
- Volunteers
- 24 people
- Sponsor
- Shin Kong Wu Ho-Su Memorial Hospital
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
Endophthalmitis, Cataract
Early Vitrectomy for Endophthalmitis After Cataract Surgery
Post-operative infectious endophthalmitis is devastating condition that causes a diffuse intraocular inflammation and may lead to blindness.
- Conditions
- Endophthalmitis, Cataract, Vitreous Detachment, Retinal Detachment
- Trial name
- NCT05249413
- Testing
- Early 23-gauge pars-plana vitrectomy
- Where
- Egypt
- Volunteers
- 11 people
- Sponsor
- Benha University