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Vitreous Hemorrhage clinical trials

View clinical trials related to Vitreous Hemorrhage.

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NCT ID: NCT06383754 Completed - Epiretinal Membrane Clinical Trials

Clareon Intraocular Lens Stability in Vitrectomy Patients: CLOVE Study

Start date: June 7, 2021
Phase: N/A
Study type: Interventional

This prospective randomized controlled trial will be conducted to investigate Clareon intraocular lens (IOL) stability in vitrectomy patients. The investigator plans to target the patients undergoing cataract surgery. A randomized study will be conducted with 2 arms, one with Clareon IOL versus a second arm using the Tecnis 1 In this non-inferiority study, the investigator will compare Clareon IOL from Alcon with the existing Tecnis 1 IOL from Precision Lens which is the commonly used intraocular lens in combined vitrectomy cases in Hong Kong.

NCT ID: NCT06343961 Not yet recruiting - Clinical trials for Diabetic Retinopathy

Intraoperative Application of Fluorescein Sodium Angiography in Vascular Retinopathy

Start date: April 18, 2024
Phase: N/A
Study type: Interventional

The study used a new surgical technique: intraoperative fluorescence imaging,In the 1980s, some scholars proposed the concept of intraoperative fluorescein angiography.During vitrectomy, intraoperative fluorescein angiography under 3D microscope can guide the surgeon to observe the non-perfusion area and new blood vessels on the same screen for accurate retinal photocoagulation therapy.Through this technology, the primary retinal disease can be identified in time after the removal of vitreous hemorrhage during surgery, providing effective imaging evidence support for the design of further treatment.

NCT ID: NCT06191094 Not yet recruiting - Clinical trials for Diabetic Retinopathy

Pre-operative Vabysmo in Patients With Non-clearing Vitreous Hemorrhage Secondary to Proliferative Diabetic Retinopathy

Start date: August 2024
Phase: Phase 4
Study type: Interventional

In this phase IV, randomized, double-masked, sham-controlled study the investigators hope to determine the efficacy in peri-operative faricimab (Vabysmo) compared to sham in limiting complications from pars plana vitrectomy for diabetic vitreous hemorrhage with or without tractional retinal detachments.

NCT ID: NCT05739539 Completed - Clinical trials for Tractional Retinal Detachment

Assessment of Retinal Vascular Changes With and Without ILM Peeling in Diabetic Vitrectomy Using OCT-A.

Start date: April 1, 2022
Phase: N/A
Study type: Interventional

Tractional retinal detachment (TRD) that involves the macula and non-clearing vitreous hemorrhage are the main causes of permanent vision loss in patients with diabetic retinopathy and requires prompt surgical intervention. Macular peeling is a surgical technique used in many retinal diseases including diabetic retinal detachment. Our purpose is to determine whether retinal microcirculatory changes occur after anatomically successful diabetic vitrectomy, and whether changes in blood flow vary if ILM peeling was done and whether changes in macular perfusion affect the final visual outcome. The aim of this study is to non-invasively evaluate, with optical coherence tomography angiography (OCT-A), the anatomical changes of deep and superficial vascular density in the macula with and without macular peeling in diabetic vitrectomy.

NCT ID: NCT05710458 Completed - Retinal Detachment Clinical Trials

Performance Comparison of the 25 Gauge 20,000cpm HYPERVIT Dual Blade vs. 10,000cpm ULTRAVIT Vitrectomy Cutter

Start date: July 1, 2021
Phase: N/A
Study type: Interventional

This prospective randomised controlled trial will be conducted to investigate that increasing the vitrectomy cutting rate from 10,000 cut/min to 20,000 cut/min will result more efficiency and shorter core vitrectomy time, and it is equally safe as compared to the current 10,000 cut/min. We plan to target the patients undergoing for vitrectomy for common vitreoretinal pathology. Our plan is to conduct a randomised study with 2 arms, one with the higher cutting rate (20,000 cut/min) versus a second arm using the existing system 10,000 cuts/min.

NCT ID: NCT05588037 Recruiting - Cataract Clinical Trials

Combined Vitrectomy and Femtosecond Laser-assisted Cataract Surgery

Start date: January 1, 2017
Phase: N/A
Study type: Interventional

Based on the progress of cataract surgery, intraocular lens development, vitreoretinal surgery and anesthesia technology in recent years, the purpose of this study is to develop a new type of more accurate and minimally invasive combined surgery for cataract and fundus diseases, and to evaluate the advantages and value of the surgery as well as related complications, so as to minimize the surgical trauma and obtain faster visual function recovery and better patient comfort. To provide new solutions for the growing demand of eye health care.

NCT ID: NCT05529589 Recruiting - Vitreous Hemorrhage Clinical Trials

Comparison of Restoration in Vitreous Hemorrhage Patients With DME After or Not Removing Inner Limiting Membrane

Start date: February 10, 2023
Phase:
Study type: Observational

This study is conducted to compare the anti-VEGF effect and visual function in vitreous hemorrhage patients with diabetic macular edema after pars plana vitrectomy with inner limiting membrane peeling or not

NCT ID: NCT05514925 Recruiting - Clinical trials for Proliferative Diabetic Retinopathy

Cryoapplication Versus Anti-VEGF Before Diabetic Vitrectomy

Start date: November 21, 2017
Phase: Phase 4
Study type: Interventional

Pars-plana vitrectomy (PPV) is the cornerstone of surgical treatment for eyes with complicated proliferative diabetic retinopathy. Anti-VEGF intravitreal injection before PPV has shown a good effect on surgical outcomes. However, many patients present with co-morbidities that contraindicate the usage of anti-VEGF in the pre-operative period. Thus, cryoapplication, an old therapeutic tool for proliferative diabetic retinopathy may be a good alternative. The investigators present herein a comparative study between peripheral retinal cryoapplication and anti-VEGF before vitrectomy for complicated proliferative diabetic retinopathy.

NCT ID: NCT05318742 Recruiting - Clinical trials for Diabetic Vitreous Hemorrhage

Panretinal Photocoagulation During Vitrectomy for Diabetic Vitreous Hemorrhage

Start date: February 15, 2022
Phase: N/A
Study type: Interventional

In this randomized clinical trial, the authors compare two cohorts receiving different endolaser spot amounts with similar laser settings in PDR subjects naïve to PRP undergoing PPV for the indication of VH.

NCT ID: NCT05248334 Recruiting - Clinical trials for Diabetic Retinopathy

A Prospective Study of Ranibizumab in the Treatment of Postoperative Recurrent Vitreous Haemorrhage of Diabetic Retinopathy

Start date: April 10, 2022
Phase: Phase 1
Study type: Interventional

Diabetic retinopathy (DR) is one of the main complications in diabetes, the proliferative diabetic retinopathy (PDR) is the most important one of the reasons leading to decreased vision, PDR is the stage of clinical intervention. Pars plana vitrectomy (PPV) is an effective treatment for PDR, while vitreous haemorrhage (VH) is a common complication after PPV, with incidence ranging from 11.8% to 75%, and is the main cause of reoperation. Anti-Vascular endothelial growth factor (VEGF) therapy for vitreous hemorrhage can inhibit neovascularization and prevent recurrent vitreous haemorrhage after absorption. Previous studies have found that anti-VEGF is a safe and effective treatment for postoperative recurrent VH. In consideration of the psychological and economic factor of patients, this study intends to observe the effectiveness of single vitreous injection of Ranibizumab in the treatment of postoperative recurrent VH on the basis of previous clinical work. Compare the visual acuity, macular thickness, VH recurrence and patient satisfaction between the Ranibizumab group and the PPV group by randomized grouping.To observe the effective rate and clearance time of recurrent VH after Ranibizumab treatment and whether it can effectively reduce the rate of PPV. To provide clinical guidance for the precise treatment of PDR patients, the treatment of PDR patients has important clinical significance and social and economic significance.