Clinical trials: Vitreoretinal Surgeries
Vitreoretinal Surgeries, Postoperative Nausea and Vomiting
Paracetamol and Metamizole With SPI-guided Anaesthesia for VRS
The aim of this randomized trial is to assess the efficacy of preemptive analgesia using paracetamol or metamizole or both of them under SPI-guided anaesthesia for vitreoretinal surgery (VRS), presence of PONV (postoperative…
- Conditions
- Vitreoretinal Surgeries, Postoperative Nausea and Vomiting, Postoperative Pain
- Trial name
- P&MSPIVRS (NCT03389243)
- Testing
- Metamizol, paracetamol, paracetamol and metamizole
- Where
- Poland
- Volunteers
- 165 people
- Sponsor
- Medical University of Silesia
Intraocular Pressure
iCare vs Tonopen vs Goldmann Applanation Post-vitrectomy Surgery
The purpose of the study is to compare the measurement of pressure inside the eye using three different FDA-approved devices (Icare, Tonopen, and Goldmann applanation).
- Trial name
- NCT01786954
- Testing
- Icare rebound tonometry, Tonopen applanation, Goldmann applanation
- Where
- United States
- Volunteers
- 68 people
- Sponsor
- Duke 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
Subtenon Anesthesia
Subtenon Block Combined With General Anesthesia for Vitreoretinal Surgery
To evaluate the effects of subtenon block (SB) as an adjunct to general anaesthesia on postoperative pain, oculocardiac reflex and postoperative nausea and vomiting for vitreoretinal surgery.
- Trial name
- NCT02282774
- Testing
- 2% lidocaine and 0.5% bupivacaine
- Where
- Saudi Arabia
- Volunteers
- 80 people
- Sponsor
- King Saud University
Macular Holes, Epiretinal Membrane
Multimodal Imaging in Vitreo-retinal Surgery and Macular Dystrophies
The aim of the study is to identify morphological and functional biomarkers of post-operative recovery after vitreoretinal surgery, using decisional support systems (DSS), based on multimodal big-data analysis by means of machine…
- Conditions
- Macular Holes, Epiretinal Membrane, Retinal Detachment, Macular Dystrophies
- Trial name
- MICAI (NCT05747144)
- Testing
- Biometry, Retinography (Color) + Autofluorescence (AF), OCT B-scan and OCT angiography (OCTA)
- Where
- Italy
- Volunteers
- 100 people
- Sponsor
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS
Patients With Highly Myopic Eyes
3D Visualization System for Vitreoretinal Diseases in Highly Myopic Eyes
To investigate the surgical outcomes and intraoperative parameters evaluation of 3D visualization system for vitreoretinal diseases in highly myopic eyes
- Trial name
- NCT05367193
- Testing
- pars plana vitrectomy, NGENUITY® 3D Visualization System (Alcon, TX, USA)
- Where
- Taiwan
- Volunteers
- 40 people
- Sponsor
- National Taiwan University Hospital
Vitreoretinal Surgery
Foldable Capsular Vitreous Body Implantation Study
This study is intended to evaluate the clinical usefulness of the FCVB in its on-label use, but in a different racial type than studies till now (Asians only).
- Trial name
- FCVB (NCT03390244)
- Testing
- Foldable Capsular Vitreous Body Implant
- Where
- Belgium
- Volunteers
- 2 people
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
Surgery
Topical 0.4% Ketorolac and Vitreoretinal Surgery
To determine whether use of topical 0.4% ketorolac has any effect on pupil size during vitreoretinal surgery.
- Trial name
- NCT00576329
- Testing
- Ketorolac
- Where
- United States
- Volunteers
- 76 people, healthy volunteers welcome
- Sponsor
- Emory University
Ocular Inflammation
PGE2 Levels in Patient Treated With NSAIDs
The aim of this study is to determine vitreous levels of nonsteroidal antinflammatory drugs (NSAIDs) and prostaglandinE2 (PGE2) in eyes scheduled for vitrectomy. All patients received the study drugs for 3 days before surgery.
- Trial name
- NCT03597867
- Testing
- Dicloftil, Nevanac, Indom
- Where
- Italy
- Volunteers
- 104 people, healthy volunteers welcome
- Sponsor
- University of Trieste
Vitreoretinal Surgery
Comparative Study 23G Versus 27G Vitrectomy
Investigator-initiated, comparative double-arm, mono-center, prospective, interventional case study to determine whether ultra-small gauge surgery (27G gauge needle) improves postoperative outcome and patient morbidity.
- Trial name
- 23Gvs27G (NCT04216108)
- Testing
- Vitrectomy (23G gauge needle), Vitrectomy (27G gauge needle)
- Where
- Belgium
- Volunteers
- 80 people
- Sponsor
- Prof. Dr. Peter Stalmans
Vitreoretinal Disease With or Without Cataracts
Next Generation Cataract and Vitreoretinal Surgery Study
The purpose of this study is to obtain device-specific safety and performance clinical data to support marketability in Europe and to collect formal user feedback.
- Trial name
- NCT06165744
- Testing
- UNITY Vitreoretinal Cataract System, Posterior segment surgery in the operating room with or without simultaneous cataract surgery
- Where
- 5 sites in Australia
- Volunteers
- 120 people
- Sponsor
- Alcon Research
Retinal Detachment, Macular Edema
OCT Macula Biomarkers Before Silicone Oil Removal and Visual Outcome After Silicone Oil Removal
Silicone oil is commonly used as a temporary intraocular tamponade to support the retina during vitreoretinal surgery for complex retinal detachment and other severe retinal conditions.
- Conditions
- Retinal Detachment, Macular Edema, Silicone Oil Tamponade, Epiretinal Membrane
- Trial name
- NCT07865468
- Volunteers
- 30 people
- Sponsor
- Assiut University
Vitreoretinal Surgery, Cognitive Function Abnormal
The Effect of Retrobulbar Block for Eye Surgery on Brain Oxygenation and Cognitive Functions in Elderly Patients
The investigators measured changes in cerebral oxygen saturation (rSO2) and MMSE scores after retrobulbar block performed with levobupivacaine and lidocaine in patients undergoing vitreoretinal surgery.A total of 66 patients over…
- Conditions
- Vitreoretinal Surgery, Cognitive Function Abnormal, Intraoperative Monitoring
- Trial name
- NCT03189329
- Testing
- 2% lidocaine hydrochloride, 0.5% levobupivacaine
- Where
- Turkey (Türkiye)
- Volunteers
- 66 people
- Sponsor
- Cengiz KAYA
Macular Holes, Intraocular Lens Opacification
Oral Sedation in Vitreoretinal Surgery
The purpose of this study is to compare the efficacy of oral sedation to intravenous sedation with anesthesiology support and monitoring.
- Conditions
- Macular Holes, Intraocular Lens Opacification, Vitrectomy, Vitreous Hemorrhage
- Trial name
- NCT04346095
- Testing
- Oral Sedatives with or Without Analgesia, Intravenous Sedatives with or Without Analgesia
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Rocky Vista University, LLC
Epiretinal Membrane, Macular Hole
Applicability of the Acai Fruit (Euterpe Oleracea) Dye for Chromovitrectomy in Humans
Our research group tested the toxicity of different dye concentrations extracted from the acai fruit using a rabbit model. The dye extracted from the acai fruit in concentrations of 10% and 25% was found to be safe for…
- Conditions
- Epiretinal Membrane, Macular Hole, Diabetic Retinopathy
- Trial name
- NCT02691429
- Testing
- Acai dye 10%
- Where
- Brazil
- Volunteers
- 24 people
- Sponsor
- Federal University of São Paulo
Vitreoretinal Surgeries, Local Anesthesia
Comparative Study Between Dexmedetomidine & Neostigmine as an Adjuvant to Local Anesthetic Mixture in Peribulbar Block in Vitreoretinal Surgeries
The majority of patients undergoing ophthalmic surgeries are elderly, with multiple chronic diseases, with increased risk of morbidity and mortality under general anesthesia.
- Trial name
- NCT06501352
- Testing
- Dexmedetomidine, Neostigmine, Saline
- Where
- Egypt
- Volunteers
- 81 people
- Sponsor
- Ain Shams University
Diabetic Retinopathy
Perfluorocarbon Perfused Vitrectomy and 3D Vitrectomy System in Advanced Diabetic Retinopathy
To investigate the feasibility and advantages of using perfluorocarbon liquid (PCL) perfusion to remove vitreous during suction-cutting vitrectomy using a dual, dynamic drive (3D)technology.
- Trial name
- NCT00407108
- Testing
- Vitrectomy
- Where
- Mexico
- Sponsor
- Asociación para Evitar la Ceguera en México
Rhegmatogenous Retinal Detachment
Treatment of Retinal Detachment in People Who Have Not Had Cataract Surgery With Vitrectomy vs Vitrectomy and Cataract Removal
Background and study aims The retina is the layer at the back of the eye that allows us to see. Sometimes, it can detach from the wall of the eye, causing a condition called rhegmatogenous retinal detachment (RRD), which leads to…
- Trial name
- COMBAT (NCT06997874)
- Testing
- Phacovitrectomy, Vitrectomy
- Where
- 30 sites in United Kingdom
- Volunteers
- 276 people
- Sponsor
- Queen's University, Belfast
Peribulbar Anesthesia
Dexmedetomidine Adjuvant in Retinal Surgery
During LA in retinal surgery there is some problem as regard the lack of anaesthesia duration and unexpected globe movement .so many adjuvant was added to LA to overcome this disadvantages of LA such as clonidine and fentanyl .
- Trial name
- NCT02282787
- Testing
- DEXMEDETOMIDINE
- Where
- Saudi Arabia
- Volunteers
- 90 people
- Sponsor
- King Saud University
Retinal Detachment
Anticoagulant and Antiplatelet Agents in Patients Undergoing Vitreoretinal Surgery
Purpose: To establish the prevalence of anticoagulant, aspirin, and clopidogrel use in patients undergoing vitreoretinal surgery, and to compare the outcome of peribulbar anesthesia between users and non-users.
- Trial name
- NCT01020656
- Where
- France
- Volunteers
- 206 people
- Sponsor
- Centre Hospitalier Universitaire Dijon