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Analysis of Amount and Density of Residual Silicone Oil Fragments in Vitreous Cavity After Retinal Detachment Surgery

ABSTRACT Purpose: To analyze the amount of residual silicon oil (SO) fragments in vitreous cavity after retinal detachment surgery. Methods: Twenty-six patients (26 eyes) (mean age 47. years) underwent ultrasound examination after SO removal (Oxane SO 1300, Bousch&Lomb). The amount of hyperechogenic silicone oil fragments in vitreous cavity was analyzed in four quadrants of multiple scans using method of neural circuits. Results: In all...

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New Instruments for Vitreoretinal Surgery

ABSTRACT Purpose: To present the new instruments for vitreoretinal (VR) surgery. Methods: 1. to modify the conventional tacking forceps for array tacking during Argus II implantation on the right eyes, in order to perform the tacking with the right hand; 2. to modify 25-gauge ILM forceps for intraoperative optical coherence tomography (iOCT) assisted VR surgery in order to reduce the shadowing during surgery. The prototypes of the new...

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A Retrospective Study of Serial Endophthalmitis in Ukraine

A Retrospective Study of Serial Endophthalmitis in Ukraine ABSTRACT Purpose: To analyze rate, causes, therapeutic approaches and complications of serial endophthalmitis in Ukraine. Methods: A retrospective study of 4 episodes of serial endophthalmitis from 4 different clinics in the period of time from 1996 till 2016 was performed. The series consisted of 12, 22, 3 and 24 cases of postoperative endophthalmitis. Case series were studied...

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Standard IVI Technique as a Risk Factors for Postoperative Endophthalmitis: Vitreous Contamination Due to Injection of Cellular Content of Ocular Tissues Cut by the Needle Tip

Standard IVI Technique as a Risk Factors for Postoperative Endophthalmitis: Vitreous Contamination Due to Injection of Cellular Content of Ocular Tissues Cut by the Needle Tip ABSTRACT Purpose: Intravitreal injections (IVI) have associated risk of intraocular inflammation, and considered to be the main cause of intraocular septic and aseptic reaction. The mechanism of vitreous contamination is not studied well. Our purpose was to...

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Difficulties of Surgical Procedure During Experimental Transplantation of Retinal Pigmented Epithelial Cells in a Large Animal Model

Difficulties of Surgical Procedure During Experimental Transplantation of Retinal Pigmented Epithelial Cells in a Large Animal Model ABSTRACT Purpose: To report surgical difficulties during experimental transplantation of retinal pigmented epithelial cells in subretinal space on eyes of large animal model using nanofibers scaffold and injector. Methods: Six eyes of minipigs underwent standard 3-port 23 G PPV. Implantation of nanofibers...

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29 G Endoillumination Assisted Scleral Buckling Using New Illuminated Indenter-marker

The authors declare potential conflict of interest regarding the new design of the instrument. Purpose: To report a 29 gauge endoillumination assisted scleral buckling technique for rhegmatogenous retinal detachment (RRD) using a new illuminated indenter-marker and non-contact wide-angle viewing system. Methods: Nine consecutive cases with RRD underwent 29 gauge endoillumination assisted scleral buckling using a new instrument, illuminated...

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Intrascleral 3-piece IOL Fixation in Combined RD Cases

Purpose: To report the results of intrascleral IOL fixation in patient who had lens lunation combined with retinal detachment (RD) surgery. Methods: Forty-seven eyes of 47 patients with a diagnosis of RD combined with lens luxation were enrolled into this prospective non-randomised study. Pre- and postoperative standard ophthalmic examination was performed in all patients. Surgery included either phacoemulsification or phacofragmentation...

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Intravitreal Levoxacin as Initial Treatment of Acute Exogenous Endophthalmitis Before PPV

The authors declare no conflict of interest. Purpose: To report the efficacy of intravitreal levofloxacin as an initial treatment of acute exogenous endophthalmitis on the stage of transportation of the patients to the vitreoretinal department and before early pars plana vitrectomy (PPV). Methods: Thirty patients (34 eyes) with exogenous endophthalmitis were included to this prospective non-randomized study. Fourteen patients (41.2%) had...

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Surgical Embolectomy for Branch Retinal Artery Occlusion

Purpose: To report a clinical case of surgical treatment of acute hemi-central retinal artery occlusion. Methods: A 52 years old female with hemi-central retinal artery occlusion due to calcific emboli (CE) on her right eye (RE) was operated on the 7th day after the event. The combined procedure that included phacoemulsification, intraocular lens implantation, pars plana vitrectomy and embolectomy followed fluid/air exchange was performed....

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Modification of Vitreoretinal Instruments: Perfection or Complication

Advantages: To reduce the disadvantages of standard vitreoretinal instruments (cannulas and ILM forceps) which arise during the use on eyes with long axial length. Methods: Two types of aspiration cannulas and one ILM forceps for surgery on eyes with long axial length were designed on schematic eye drawing and manufactured. Forty-four eyes with high-grade myopia (axial length 28-33.5 mm) were operated for retinal detachment and macular...

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Closer Look at Physical Properties of PFCL and Silicone Oil

Advantages: To study physical properties of perfluorocarbon liquids and silicone oil in vitro. Methods: Samples of perfluodecalin and silicone oil were taken to study their physical properties under microscope in dormant conditions. Samples of emulsified silicone oil were studied under microscope in BSS drop to evaluate physical properties in dormant conditions. Additional sample staining with the use of stain Sudan III was performed....

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Modified Vitreo Retinal Instruments for Macular Surgery on Eyes with High Myopia

Advantages: To improve certain vitreo-retinal instruments to enhance the accesses to posterior pole and avoid complications during macular surgery in highly myopic eyes. Methods: Modified double bent aspiration 23-gauge cannula with 30.00 mm working part was used during pars plana vitrectomy in highly myopic eyes. The aspiration of residual PFCL or BSS with modified cannula was performed under visual control using different kinds of...

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Correlation Between Post-operative OCT Changes and Best Corrected VA After PPV for RD

Advantages: To reveal post-operative specific changes of macular layers using OCT in patients with rhegmatogenous retinal detachment (RD) with macula-off and macula-on pre-op; to provide correlation between OCT changes and post-operative best corrected visual acuity (BCVA). Methods: In 42 patients with rhegmatogenous RD in 1 month after pars-plana vitrectomy OCT analysis (HD-OCT, Cirrus, Carl Zeiss, Meditec) was performed to detect...

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Unusual Post-op High VA After Scleral Buckling with Incomplete Macular Reattachment

Advantages: To report a clinical case of long-standing post-operative high best corrected visual acuity (BCVA) after scleral buckling procedure due to rhegmatogenous retinal detachment (RD) with incomplete macular reattachment. Methods: A sixty-four-year-old female was admitted to Kyiv Eye Microsurgery Center in September 2011 with diagnosis of rhegmatogenous RD (extension from 5 to 11 o’clock) on her right eye temporal side with...

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Management of Closed Funnel Retinal Detachment with Giant Tears

Andriy Sergienko, Lyubomyr Lytvynchuk (Kyiv, Ukraine) Advantages: To achieve retinal reattachment in RD cases with contraction and shrinking of the retina. Methods: Five cases ware include into the study. The steps of surgical technique were following: 1. Lensectomy and bimanual removal of the anterior proliferative loop. 2. Stretching of retinal edges and creation of triangular entry into the RD funnel. Removal of accessible epiretinal...

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The Frequency of Silicone Oil Induced Glaucoma After Pars Plana Vitrectomy

A. Sergienko, L. Lytvynchuk, I. Kozlovska, Galina Y. Lavrenchuk, O. Fylypchuk, V. Siriachenko (Kyiv, Ukraine) Advantages: To evaluate the incidence of secondary glaucoma after pars plana vitrectomy due to silicon oil emulsification in different terms of endotamponade and to study the efficacy of trabeculectomy in refractory cases to medical treatment. Methods: Sixty-four (64) patients with different duration of silicon oil endotamponade...

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Biological Effects of Pharmacological Agents on Proliferative Cellular Activity in Vitro

Olena Vlasko, Andriy Sergienko, Lyubomyr Lytvynchuk, Galina Y. Lavrenchuk (Kyiv, Ukraine) Advantages: To study cellular effects of pharmacological agents (drugs, dyes and substitutes) on the highly proliferative fibroblast-like cell strain L929, as an in vitro model of proliferative vitreoretinopathy processes. Methods: Pharmacological agents for intravitreal administration (betamethasone, triamcynolone acetonide, mytomicine C,...

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Cellular Effects of Vitreous Body and Subretinal Fluid in Vitro

Andriy Sergienko, Luybomyr Lytvynchuk, Galina Lavrinchuk, Olena Vlasko (Kyiv, Ukraine) Objective: To evaluate the effects of vitreous and subretinal fluid on fibroblast-like cell strains, as a model of proliferative processes in vitro. To find out the evidences that PVR development is dependent not only on RPE migration. Methods: Eleven vitreous aspirates and 9 subretinal fluid samples, taken during PPV in eyes with retinal detachment,...

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Long-Term Effects of Intravitreal Bevacizumab (Avastin) in the Treatment of Choroidal Neovascular Membranes Due to Pathologic Myopia

http://www.evrs.eu/medias/2010/congress/Non-Age-Related-Macular-Degeneration-Nor-Diabetes-Neovascularization.flv Andriy Sergienko, Lyubomyr Lytvynchuk (Kyiv, Ukraine) Advantages: Intravitreal bevacizumab (Avastin) is a new and safe surgical treatment for choroidal neovascularization due pathologic myopia (myopic CNV). It allows controlling CNV activity and does not lead to development of foveal chorioretinal atrophy. In some cases, it...

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Surgical Treatment of von Hippel Peripheral Capillary Hemangioma Complications

http://www.evrs.eu/medias/2010/congress/Vascular-Pathologies-in-Young-Patients.flv Andriy Sergiienko, Lyubomyr Lytvynchuk, Oleksandr Fillipchuk (Kiev, Ukraine) Advantages: Exudative maculopathy and tractional retinal detachment are common complication of peripheral capillary hemangioma. Surgical approach necessitates big challenges and careful treatment planning. Methods: 5 patients with exudative maculopathy and tractional retinal...

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What Can We Do to Improve and Increase the Efficacy of Our Service Delivered to the Patients?

Authors: Lyubomyr Lytvynchuk, Andrii M. Sergienko, Kiev, Ukraine Advantages: Taking care of themselves the surgeons save strength to deliver medical service to the patients. The accuracy of the hand and fingers movements is dependent on the physical status of the whole body. Methods: The idea is to make the surgeons pay attention to the self-posturing during the surgery and to increase their physical activity during the operating day. Some...

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