Clinical trials: Vitreous Disorder
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
Abnormal Vitreous Humor Morphology, Abnormal Choroid Morphology
Accuracy of the Red Reflex Test in the Pediatric Population
This study is designed to investigate the sensitivity and specificity of the Red Reflex Test (RRT), with and without dilation, for early detection of ocular abnormalities in children and newborns.
- Conditions
- Abnormal Vitreous Humor Morphology, Abnormal Choroid Morphology, Optic Nerve Diseases, Retinal Disease
- Trial name
- NCT04125043
- Testing
- Direct ophthalmoscope
- Where
- United States
- Volunteers
- 84 people, healthy volunteers welcome
- Sponsor
- Children's National Research Institute
Proliferative Diabetic Retinopathy
Changes in Vitreous Temperature During Phacoemulsification
Temperature in the vitreous cavity decreases during vitrectomy, and the same effect is seen during an uneventful phaco surgery. Significant changes occur between the baseline temperature and after every step of the surgery.
- Trial name
- NCT01568242
- Testing
- Phacoemlsification
- Where
- Mexico
- Sponsor
- Asociación para Evitar la Ceguera en México
Diabetic Retinopathy
Effect of Intravitreal Bevacizumab on Early Post-Vitrectomy Hemorrhage in Diabetic Patients
The purpose of this study is to determine whether bevacizumab 1-2 weeks before vitrectomy is effective in lowering the rate of early post-vitrectomy vitreous hemorrhage in diabetic patients.
- Trial name
- NCT00524875
- Testing
- Bevacizumab
- Where
- Iran
- Volunteers
- 80 people
- Sponsor
- Shahid Beheshti University of Medical Sciences
Diabetic Retinopathy
Intravitreal Bevacizumab for Management of Active Progressive Proliferative Diabetic Retinopathy (PDR)
To evaluate the effect of intravitreal bevacizumab on the course of diabetic retinopathy in cases with the signs of active progressive PDR
- Trial name
- NCT00370721
- Testing
- bevacizumab
- Where
- Iran
- Sponsor
- Shahid Beheshti University of Medical Sciences
Retinal Detachment
The Exploratory Clinical Trials for the Feasibility, Primary Safety and Efficacy of Foldable Capsular Vitreous Body
The purpose of this study is to determine the feasibility, primary safety and efficacy of foldable capsular vitreous body (FCVB) in the treatment of retinal detachment.
- Trial name
- NCT00910702
- Testing
- foldable capsular vitreous body(FCVB)
- Where
- China
- Volunteers
- 15 people
- Sponsor
- GuangZhou WeiShiBo Biotechnology Co., ltd
Weiss Ring, Floaters
YAG Vitreolysis for Floaters
This is a single-center, prospective randomized controlled trial evaluating the safety and efficacy of YAG vitreolysis versus sham for symptomatic Weiss ring due to posterior vitreous detachment.
- Conditions
- Weiss Ring, Floaters, Posterior Vitreous Detachment
- Trial name
- NCT02897583
- Testing
- YAG vitreolysis
- Volunteers
- 52 people
- Sponsor
- Ophthalmic Consultants of Boston
MicroRNA Expression Profile in Human Vitreous of Various Vitreoretinal Diseases
MicroRNA Expression Profile in Human Vitreous of Patients With Various Vitreoretinal Diseases Requiring Vitrectomy
MicroRNAs are important regulators of many cellular functions but their expression profile in human vitreous is still unclear. Aim of this study is to investigate microRNA expression profile by PCR in human vitreous of patients…
- Trial name
- NCT01674023
- Where
- Japan
- Volunteers
- 8 people
- Sponsor
- Kyorin University
Retinopathy of Prematurity Both Eyes, Retinal Disease
Safety and Efficacy of 18 mm Short Vitrectomy Probe for Pediatric Vitreoretinal Surgeries
This study aims to study the safety and efficacy of using an 18 mm short vitrectomy probe for pediatric vitreoretinal surgeries and to investigate the surgeon's comfort and reliability of using the shorter probe.
- Conditions
- Retinopathy of Prematurity Both Eyes, Retinal Disease, Persistent Fetal Vasculature, Coats Disease
- Trial name
- NCT06520410
- Testing
- Pars plana vitrectomy with a 18 mm short vitrector
- Where
- Taiwan
- Volunteers
- 60 people
- Sponsor
- Chang Gung Memorial Hospital
Retinopathy of Prematurity
Vascular Endothelial Growth Factor in Stage V ROP
Vascular Endothelial Growth Factor (VEGF) is a dimeric glycoprotein, naturally expressed in epithelial and tumor cells (1). Normal Retinal vascularization has two phases: In the first fase, cells of mesenquimatous origin form the…
- Trial name
- NCT00500396
- Testing
- Open-Sky Vitrectomy
- Where
- Mexico
- Volunteers
- 15 people
- Sponsor
- Asociación para Evitar la Ceguera en México
Macular Edema, Cystoid, Uveitis
Vascular Endothelial Growth Factor (VEGF) in Uveitis
This study will look for the presence in blood of a substance called vascular endothelial growth factor (VEGF) in patients with uveitis (eye inflammation).
- Trial name
- NCT00001738
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- National Eye Institute (NEI)
Diabetes, Diabetes Mellitus
Thrombospondin-1 and Pigmented Epithelium Derived Factor Levels in Patients With Diabetes Mellitus.
You are being asked to be in a research study to determine blood levels and vitreous levels of compounds called thrombospondin 1 (TSP1) and pigment epithelium derived factor (PEDF). These compounds exists naturally in your body.
- Trial name
- PEDF (NCT01809093)
- Testing
- Blood draw
- Where
- United States
- Volunteers
- 90 people
- Sponsor
- MidAtlantic Retina
Macular Degeneration, Neovascularization, Pathologic
Branch Vein Occlusion Study
To determine whether scatter argon laser photocoagulation can prevent the development of neovascularization. To determine whether peripheral scatter argon laser photocoagulation can prevent vitreous hemorrhage.
- Conditions
- Macular Degeneration, Neovascularization, Pathologic, Vitreous Hemorrhage
- Trial name
- NCT00000162
- Testing
- Macular Argon Laser Photocoagulation, Peripheral Scatter Argon Laser Photocoagulation, Scatter Argon Laser Photocoagulation
- Sponsor
- National Eye Institute (NEI)
Vitreous Floaters, Anxiety
Effectiveness of Multimedia Health Education to Reduce Anxiety in Patients With Vitreous Floaters
The patients with vitreous floaters were randomly divided into to groups after excluding the possibility of coexisting ocular pathologies potentially confounding visual symptoms or vitreoretinal anatomy.
- Trial name
- NCT06964867
- Testing
- Multimedia Health Education
- Where
- China
- Volunteers
- 300 people
- Sponsor
- Changzhou No.2 People's Hospital
Cataract, Vitreous Hemorrhage
Study on Eye-Brain Cross-Organ Mapping and Systemic Disease Association Based on Multimodal Big Data
This project integrates multimodal eye data (CFP, OCT, OCTA) from 50,000 cases, brain MR data from 150,000 cases, and ICD diagnoses, medical orders, and test results from an eye-brain paired cohort of 8,000 cases to construct an…
- Conditions
- Cataract, Vitreous Hemorrhage, Diabetic Eye Diseases, Cerebral Small Vessel Disease
- Trial name
- NCT07541651
- Testing
- No interventions were involved in this study.
- Volunteers
- 208,000 people, healthy volunteers welcome
- Sponsor
- Beijing Friendship Hospital
Eye Disease, Inflammation
Cyclosporin Implant to Treat Uveitis
This study will evaluate the safety and effectiveness of a sustained-release cyclosporin implant to treat uveitis, a sight-threatening eye inflammation caused by an immune system abnormality.
- Conditions
- Eye Disease, Inflammation, Uveitis
- Trial name
- NCT00001737
- Testing
- Cyclosporin A Implant
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- National Eye Institute (NEI)
Retinopathy of Prematurity
VEGF Levels in Aqueous, Vitreous and Subretinal Fluid in ROP Stage IV and V
To determine the degree of VEGF in Aqueous, vitreous and SRF in patients with ROP in stage V. Verifying that it is greater to that found in healthy newborn patients with different ocular pathology.
- Trial name
- NCT00563121
- Testing
- Vitrectomy
- Where
- 2 sites in Mexico
- Sponsor
- Asociación para Evitar la Ceguera en México
Persistent Fetal Vasculature, Congenital Cataract
Congenital Cataract With Persistent Fetal Vasculature
To observe the clinical characteristics and surgical treatment of 24 cases of congenital cataract complicated with Persistent Fetal Vasculature (PFV) in 28 cases of congenital cataract in our hospital.
- Trial name
- NCT03341624
- Testing
- cataract surgery cataract extraction and intraocular implantation
- Where
- China
- Volunteers
- 30 people
- Sponsor
- Yune Zhao
Diabetes Mellitus, Diabetic Retinopathy
Intravitreal Long Acting Gas in the Prevention of Early Postoperative Vitreous Hemorrhage in Diabetic Vitrectomy
Recurrent vitreous hemorrhage after vitrectomy for complications of diabetic retinopathy is a common occurrence. The hemorrhage may appear within the first few weeks after surgery or months later.
- Conditions
- Diabetes Mellitus, Diabetic Retinopathy, Vitreous Hemorrhage
- Trial name
- NCT00155454
- Testing
- Intravitreal long acting gas (10% C3F8)
- Where
- Taiwan
- Volunteers
- 61 people
- Sponsor
- National Taiwan University Hospital
Optic Disc Pit Maculopathy
Vitrectomy for Optic Disc Pit Maculopathy
The purpose of this study is to evaluate the efficacy of vitrectomy, without gas tamponade or laser photocoagulation to the margin of the optic nerve, for the treatment of macular detachment associated with optic disc pits and to…
- Trial name
- NCT01340703
- Testing
- vitrectomy without laser or gas tamponade
- Where
- Japan
- Volunteers
- 8 people
- Sponsor
- Kyorin University