Clinical trials: Pars Plana Vitrectomy
Vitreoretinal Diseases
Safety and Feasibility of Sutureless Pars-plana Vitrectomy in Sub-Tenon Anesthesia
The aim of this prospective study is to investigate the feasibility of performing minimally invasive vitrectomy under sub-tenon anesthesia in terms of intraoperative patients' tolerance and the surgeon's confidence.
- Trial name
- SAFE-VISA (NCT04257188)
- Testing
- minimally invasive vitrectomy under subtenon anaesthesia
- Where
- Germany
- Volunteers
- 67 people
- Sponsor
- RWTH Aachen University
Diabetic Retinopathy, Macular Edema
Triple Therapy of Pars Plana Vitrectomy and Grid/Focal Laser for Diabetic Macular Edema (DME)
This study is designed to report 3-year result of triple therapy of vitrectomy, intravitreal triamcinolone and macular laser photocoagulation for intractable diabetic macular edema.
- Trial name
- NCT01202461
- Testing
- Triple therapy of vitrectomy, IVTA and grid/focal laser photocoagulation
- Where
- South Korea
- Volunteers
- 41 people
- Sponsor
- Samsung Medical Center
Macular Hole, Retinal Detachment
Effect of Topical Aqueous Suppressants on Intraocular Gas Duration Following Pars Plana Vitrectomy
The purpose of this study is to see if glaucoma eye drops (dorzolamide-timolol) have any effect on the duration of an intraocular gas bubble following pars plana vitrectomy.
- Trial name
- NCT01257698
- Testing
- Dorzolamide 2%-timolol 0.5% topical eyedrops
- Where
- United States
- Volunteers
- 21 people
- Sponsor
- Mid Atlantic Retina
Rhegmatogenous Retinal Detachment
Corneal Changes After Retinal Surgery
The purpose of this study is to evaluate the corneal changes after performing 20 gauge vitrectomy associated with scleral buckling for the treatment of rhegmatogenous retinal detachment.
- Trial name
- NCT01446367
- Volunteers
- 25 people
- Sponsor
- Universidade Federal do Paraná
Retinal Detachment, Refractive Errors
Visual Outcome of Vitrectomy After Refractive Surgery
Results of retinal detachment surgery may be affected in cases with history of previous intraocular surgery.
- Trial name
- NCT05583253
- Testing
- Vitrectomy
- Where
- Egypt
- Volunteers
- 50 people
- Sponsor
- Benha University
Retinal Detachment, Refractive Errors
Refractive Changes Following Vitrectomy
We aimed o compare the refractive changes associated with pars plana vitrectomy with or without intraocular gas tamponade in pseudophakic eyes.
- Conditions
- Retinal Detachment, Refractive Errors, Vitreous Hemorrhage, Epiretinal Membrane
- Trial name
- NCT04712786
- Testing
- pars plana vitrectomy
- Where
- Turkey (Türkiye)
- Volunteers
- 47 people
- Sponsor
- Bursa Retina Eye Hospital
Pars Plana Vitrectomy
INTRAOCULAR PRESSURE MEASUREMENT AT the END of PARS PLANA VITRECTOMY
Intraocular pressure is measured regularly at any and all visits with your eye doctor or optometrist. The purpose of this study is to compare measurements of eye pressure at the end of the surgery, comparing the ability of a…
- Trial name
- NCT06707168
- Testing
- Digital palpation, Cotton-tipped applicator (CTA)
- Volunteers
- 30 people
- Sponsor
- Sunnybrook Health Sciences Centre
Epiretinal Membrane, Macular Pucker
Morphologic Changes After Membrane Peeling With Air Tamponade and Balanced Salt Solution
During the last decade optical coherence tomography (OCT) extended the possibilities for in vivo macula diagnostic and was increasingly used for pre- and post-operative imaging of retinal diseases.
- Trial name
- NCT02319655
- Testing
- Air tamponade, Balanced salt solution filling
- Where
- Austria
- Volunteers
- 85 people
- Sponsor
- Prim. Prof. Dr. Oliver Findl, MBA
Epiretinal Membrane, Macular Edema
Dexamethasone Intravitreal Implant After Vitrectomy For Epiretinal Membrane
The purpose of this study is to evaluate the effect of dexamethasone intravitreal implant (Ozurdex) in combination with pars plana vitrectomy and membrane peeling for idiopathic epiretinal membrane (ERM).
- Trial name
- OZURDEX2 (NCT01410201)
- Testing
- Dexamethasone Intravitreal Implant
- Where
- 3 sites in United States
- Volunteers
- 6 people
- Sponsor
- Barnes Retina Institute
Rhegmatogenous Retinal Detachment
Comparative Study Between Three Different Techniques in Drainage of SRF During PPV in RRD
The study will investigate and compare the three techniques in drainage of subretinal fluid in patients with macula off RRD: namely using the original break, performing a posterior drainage retinotomy and using PFC with drainage…
- Trial name
- NCT06324305
- Testing
- Pars plana vitrectomy (PPV) and drainage of subretinal fluid
- Volunteers
- 66 people
- Sponsor
- Ain Shams University
Proliferative Diabetic Retinopathy, Pars Plana Vitrectomy
Establishment and Validation of a Risk Prediction Model for Long-term Low Vision After Vitrectomy in PDR Patients
Diabetic retinopathy (DR) is the main cause of blindness among working-age adults in the world. Proliferative diabetic retinopathy (PDR) is the severe stage of DR, which is characterized by neovascularization of the retina.
- Conditions
- Proliferative Diabetic Retinopathy, Pars Plana Vitrectomy, Risk Prediction Model
- Trial name
- NCT05631054
- Where
- China
- Volunteers
- 250 people
- Sponsor
- Tianjin Medical University Eye Hospital
Epiretinal Membrane
Comparision of Retinal Function and Macular Structure After 27G Pars Plana Vitrectomy With Minimal Illuminiation
Purpose: To analyze the clinical benefits of using the NGENUITY 3D Visualization System in vitreoretinal surgery with low levels of endo-illumination, focusing on functional and structural retinal protection in patients with…
- Trial name
- ERM (NCT06798285)
- Testing
- Pars Plana Vitrectomy Standard, Pars Plana Vitrectomy 3D
- Where
- Poland
- Volunteers
- 40 people
- Sponsor
- Pomeranian Medical University Szczecin
Cataract
Caffeine and Cataract After Pars Plana Vitrectomy
Assessment of cataract development in patients with regular caffeine consumption and those without caffeine consumption after pars plana vitrectomy.
- Trial name
- NCT06358664
- Testing
- Pars plana vitrectomy
- Where
- Austria
- Volunteers
- 74 people
- Sponsor
- Vienna Institute for Research in Ocular Surgery
Retinal Disease, Diabetic Retinopathy
Pain During Pars Plana Vitrectomy With Sub-tenon Anesthesia
Vitreoretinal surgery has evolved to less invasive procedures, and it is used to treat a wide range of diseases. So anesthesia for vitreoretinal procedures has evolved, promoting adequate analgesia while reducing risks to the…
- Conditions
- Retinal Disease, Diabetic Retinopathy, Maculopathy
- Trial name
- NCT03902925
- Testing
- Topical lidocaine 2% jelly plus sub-tenon ropivacaine 10% injection, Peribulbar injection
- Where
- Brazil
- Volunteers
- 56 people
- Sponsor
- University of Sao Paulo
Vitrectomy
Observational Study of Ocular Inflammation in Patients Undergoing a Pars Plana Vitrectomy
This study will evaluate the degree of post-operative ocular inflammation in patients who are undergoing a pars plana vitrectomy.
- Trial name
- NCT01319318
- Testing
- Pars Plana Vitrectomy
- Where
- United States
- Volunteers
- 25 people
- Sponsor
- Allergan
Patients With Proliferative Diabetic Retinopathy Who Have Active Fibrovascular Proliferation
Pars Plana Vitrectomy for Diabetic Fibrovascular Proliferation With and Without Internal Limiting Membrane Peeling
Internal limiting membrane peeling in diabetic vitrectomy will help prevent postoperative epiretinal membrane formation
- Trial name
- NCT00556244
- Testing
- ILM peeling
- Where
- Taiwan
- Volunteers
- 40 people
- Sponsor
- National Taiwan University Hospital
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
Pars Plana Vitrectomy
Safety and Efficacy of HydroLenz for Vitrectomy-Induced Lens Opacities
The primary objective of this study is to provide safety data for two different dosages of HydroLenz. Secondary objectives are to provide preliminary data to determine whether HydroLenz has the same effect in humans as it does in…
- Trial name
- NCT05592912
- Testing
- HydroLenz Injection, No HydroLenz Injection
- Sponsor
- PromiSight, LLC
Retinal Detachment, Metamorphopsia
Retinal Displacement Rates in Pneumatic Retinopexy Versus Pars Plana Vitrectomy For Primary Retinal Detachment
Patients may experience metamorphopsia, or image distortion, after having vitrectomy to repair their rhegmatogenous retinal detachments (RRDs) especially those with a detached macula.
- Trial name
- REVEAL (NCT04158622)
- Testing
- PnR + laser/cryotherapy, PPV + laser/cryotherapy
- Where
- Canada
- Volunteers
- 100 people
- Sponsor
- Unity Health Toronto
Elderly Patients Undergoing Trans Pars Plana Vitrectomy With General Anesthesia
Comparison the Postoperative Quality of Recovery Between Neostigmine and Sugammadex in Elderly Patients Undergoing Trans Pars Plana Vitrectomy With General Anesthesia -Randomized Controlled Trial-
Sugammadex has been approved as the first targeted reversal binding agent providing predictable and complete reversal of neuromuscular blockade induced by rocuronium or vecuronium, and achieving so with a favourable safety…
- Trial name
- NCT03108989
- Testing
- Sugammadex, Neostigmine
- Where
- South Korea
- Volunteers
- 90 people
- Sponsor
- Yonsei University