oalib
Search Results: 1 - 10 of 100 matches for " "
All listed articles are free for downloading (OA Articles)
Page 1 /100
Display every page Item
Pars plana vitrectomy and internal limiting membrane peeling for macular edema secondary to retinal vein occlusion
Baharivand N, Hariri A, Javadzadeh A, Heidari E, Sadegi K
Clinical Ophthalmology , 2011, DOI: http://dx.doi.org/10.2147/OPTH.S23164
Abstract: rs plana vitrectomy and internal limiting membrane peeling for macular edema secondary to retinal vein occlusion Original Research (3118) Total Article Views Authors: Baharivand N, Hariri A, Javadzadeh A, Heidari E, Sadegi K Published Date August 2011 Volume 2011:5 Pages 1089 - 1093 DOI: http://dx.doi.org/10.2147/OPTH.S23164 Nader Baharivand, Amirhossein Hariri, Alireza Javadzadeh, Ebadollah Heidari, Karim Sadegi Nikookari Eye Hospital, Tabriz University of Medical Sciences, Tabriz, Iran Purpose: To evaluate the effects of vitrectomy and internal limiting membrane peeling for treatment of macular edema secondary to retinal vein occlusion (RVO). Methods: Nine cases of visual loss due to macular edema caused by central retinal vein occlusion or branch retinal vein occlusion underwent pars plana vitrectomy with removal of the preretinal hyaloid, peeling of the internal limiting membrane stained with indocyanine green dye, air–fluid exchange, and postoperative prone positioning. Best-corrected visual acuity (BCVA) and central foveal thickness by optical coherence tomography were measured pre- and postoperatively then compared to assess the outcome of surgery. Results: In all cases intraretinal blood and retinal thickening diminished within 2 months of surgery. Visual acuity improved in all of the central retinal vein occlusion cases and 3/6 branch retinal vein occlusion cases. The decrease in macular thickness was statistically significant (mean postoperative macular thickness 361 ± 61.1 versus mean preoperative macular thickness 563.9 ± 90.0, P = 0.001, t-test). The improvement in BCVA was not statistically significant (mean preoperative BCVA in LogMAR 1.23 ± 0.29 versus mean postoperative BCVA in LogMAR 1.06 ± 0.49, P = 0.09, t-test). Conclusion: In eyes with macular edema secondary to RVO, pars plana vitrectomy with internal limiting membrane peeling can resolve macular edema, but the improvement in BCVA was not statistically significant in this study.
Pars plana vitrectomy and internal limiting membrane peeling for macular edema secondary to retinal vein occlusion  [cached]
Bahariv,N,Hariri A, Javadzadeh A, Heidari E,Sadegi K
Clinical Ophthalmology , 2011,
Abstract: Nader Baharivand, Amirhossein Hariri, Alireza Javadzadeh, Ebadollah Heidari, Karim SadegiNikookari Eye Hospital, Tabriz University of Medical Sciences, Tabriz, IranPurpose: To evaluate the effects of vitrectomy and internal limiting membrane peeling for treatment of macular edema secondary to retinal vein occlusion (RVO).Methods: Nine cases of visual loss due to macular edema caused by central retinal vein occlusion or branch retinal vein occlusion underwent pars plana vitrectomy with removal of the preretinal hyaloid, peeling of the internal limiting membrane stained with indocyanine green dye, air–fluid exchange, and postoperative prone positioning. Best-corrected visual acuity (BCVA) and central foveal thickness by optical coherence tomography were measured pre- and postoperatively then compared to assess the outcome of surgery.Results: In all cases intraretinal blood and retinal thickening diminished within 2 months of surgery. Visual acuity improved in all of the central retinal vein occlusion cases and 3/6 branch retinal vein occlusion cases. The decrease in macular thickness was statistically significant (mean postoperative macular thickness 361 ± 61.1 versus mean preoperative macular thickness 563.9 ± 90.0, P = 0.001, t-test). The improvement in BCVA was not statistically significant (mean preoperative BCVA in LogMAR 1.23 ± 0.29 versus mean postoperative BCVA in LogMAR 1.06 ± 0.49, P = 0.09, t-test).Conclusion: In eyes with macular edema secondary to RVO, pars plana vitrectomy with internal limiting membrane peeling can resolve macular edema, but the improvement in BCVA was not statistically significant in this study.Keywords: air–fluid exchange, retinal thickening, retinal hypoxia, concomitant retinal ischemia
Outcomes of 23-gauge pars plana vitrectomy and internal limiting membrane peeling with brilliant blue in macular hole
Sanisoglu H, Sevim MS, Aktas B, Sevim S, Nohutcu A
Clinical Ophthalmology , 2011, DOI: http://dx.doi.org/10.2147/OPTH.S22381
Abstract: tcomes of 23-gauge pars plana vitrectomy and internal limiting membrane peeling with brilliant blue in macular hole Original Research (3410) Total Article Views Authors: Sanisoglu H, Sevim MS, Aktas B, Sevim S, Nohutcu A Published Date August 2011 Volume 2011:5 Pages 1177 - 1183 DOI: http://dx.doi.org/10.2147/OPTH.S22381 Huseyin Sanisoglu1, Mehmet Sahin Sevim1, Betul Aktas1, Semra Sevim2, Ahmet Nohutcu1 1Haydarpasa Numune Education and Research Hospital, Department of Ophthalmology, 2Uskudar State Hospital, Eye Clinic, Istanbul, Turkey Purpose: The evaluation of anatomic and visual outcomes in macular hole cases treated with internal limiting membrane (ILM) peeling, brilliant blue (BB), and 23-gauge pars plana vitrectomy (PPV). Materials and methods: Fifty eyes of 48 patients who presented between July 2007 and December 2009 with the diagnosis of stage 2, 3, or 4 macular holes according to Gass Classification who had undergone PPV and ILM peeling were included in this study. Pre- and postoperative macular examinations were assessed with spectral-domain optical coherence tomography. 23 G sutureless PPV and ILM peeling with BB was performed on all patients. Results: The mean age of patients was 63.34 ± 9.6 years. Stage 2 macular hole was determined in 17 eyes (34%), stage 3 in 24 eyes (48%), and stage 4 in 9 eyes (18%). The mean follow-up time was 13.6 ± 1.09 months. Anatomic closure was detected in 46/50 eyes (92%), whereas, in four cases, macular hole persisted and a second operation was not required due to subretinal fluid drainage. At follow-up after 2 months, persistant macular hole was detected in one case and it was closed with reoperation. At 12 months, an increase in visual acuity in 41 eyes was observed, while it remained at the same level in six eyes. In three eyes visual acuity decreased. There was a postoperative statistically significant increase in visual acuity in stage 2 and 3 cases (P < 0.05), however, no increase in visual acuity in stage 4 cases was observed. Conclusion: PPV and ILM peeling in stage 2, 3, and 4 macular hole cases provide successful anatomic outcomes, however, in delayed cases, due to photoreceptor loss, it has no effect on functional recovery. BB, used for clarity of ILM, may be beneficial due to its low retinal toxicity.
Outcomes of 23-gauge pars plana vitrectomy and internal limiting membrane peeling with brilliant blue in macular hole  [cached]
Sanisoglu H,Sevim MS,Aktas B,Sevim S
Clinical Ophthalmology , 2011,
Abstract: Huseyin Sanisoglu1, Mehmet Sahin Sevim1, Betul Aktas1, Semra Sevim2, Ahmet Nohutcu11Haydarpasa Numune Education and Research Hospital, Department of Ophthalmology, 2Uskudar State Hospital, Eye Clinic, Istanbul, TurkeyPurpose: The evaluation of anatomic and visual outcomes in macular hole cases treated with internal limiting membrane (ILM) peeling, brilliant blue (BB), and 23-gauge pars plana vitrectomy (PPV).Materials and methods: Fifty eyes of 48 patients who presented between July 2007 and December 2009 with the diagnosis of stage 2, 3, or 4 macular holes according to Gass Classification who had undergone PPV and ILM peeling were included in this study. Pre- and postoperative macular examinations were assessed with spectral-domain optical coherence tomography. 23 G sutureless PPV and ILM peeling with BB was performed on all patients.Results: The mean age of patients was 63.34 ± 9.6 years. Stage 2 macular hole was determined in 17 eyes (34%), stage 3 in 24 eyes (48%), and stage 4 in 9 eyes (18%). The mean follow-up time was 13.6 ± 1.09 months. Anatomic closure was detected in 46/50 eyes (92%), whereas, in four cases, macular hole persisted and a second operation was not required due to subretinal fluid drainage. At follow-up after 2 months, persistant macular hole was detected in one case and it was closed with reoperation. At 12 months, an increase in visual acuity in 41 eyes was observed, while it remained at the same level in six eyes. In three eyes visual acuity decreased. There was a postoperative statistically significant increase in visual acuity in stage 2 and 3 cases (P < 0.05), however, no increase in visual acuity in stage 4 cases was observed.Conclusion: PPV and ILM peeling in stage 2, 3, and 4 macular hole cases provide successful anatomic outcomes, however, in delayed cases, due to photoreceptor loss, it has no effect on functional recovery. BB, used for clarity of ILM, may be beneficial due to its low retinal toxicity.Keywords: macular hole, internal limiting membrane, ILM peeling, brilliant blue
Results of pars plana vitrectomy in 24 cases of endophthalmitis.  [cached]
Gadkari S,Kamdar P,Jehangir R,Shah N
Journal of Postgraduate Medicine , 1991,
Abstract: Twenty four cases of endophthalmitis were subjected to pars plana vitrectomy. A final vitreous clearance was obtained in 62.50% cases. Visual improvement occurred in 41.67% cases. It was concluded that prompt detection and early and vigorous therapy--medical and surgical--is the mainstay in the management of endophthalmitis.
Outcomes of 23-gauge pars plana vitrectomy in vitreoretinal diseases
Sezgin Ak ay B, Uyar OM, Akkan F, Eltutar K
Clinical Ophthalmology , 2011, DOI: http://dx.doi.org/10.2147/OPTH.S23910
Abstract: tcomes of 23-gauge pars plana vitrectomy in vitreoretinal diseases Case Series (2066) Total Article Views Authors: Sezgin Ak ay B, Uyar OM, Akkan F, Eltutar K Published Date December 2011 Volume 2011:5 Pages 1771 - 1776 DOI: http://dx.doi.org/10.2147/OPTH.S23910 Betül Ilkay Sezgin Ak ay1, Osman Murat Uyar2, Fevzi Akkan2, Kadir Eltutar2 1ümraniye Training and Research Hospital, stanbul, Turkey; 2 stanbul Training and Research Hospital, stanbul, Turkey Purpose: The aim of this study was to assess the efficiency and reliability of the 23-gauge (23G) transconjunctival vitrectomy system and examine possible complications of this surgical technique in a variety of vitreoretinal conditions along with early postoperative intraocular pressure (IOP) changes. Materials and methods: A total of 350 eyes of 324 patients having undergone 23G transconjunctival vitrectomy were included in this prospective study. A total of 150 (46.2%) were male and 174 (53.8%) female, with a mean age of 61.28 ± 15.67 years. Mean follow-up time was 8.3 months. Results: Mean BCVA logMARs were as follows: preoperatively 0.839 ± 0.59, postoperatively first day 2.07 ± 0.76, first week 1.14 ± 0,43, first month 0.63 ± 0.26 and last examination 0.359 ± 0.17. Mean BCVA decreased significantly (P < 0.001, P < 0.028, respectively) on postoperative first day and first week, mainly due to air or gas tamponade, and increased significantly in the first month and final control in almost all indications (P < 0.001). Postoperative mild hypotony (IOP ≤ 10 mmHg) was detected in 112 (32%) eyes on day 1 and in 59 (16.8%) eyes in week 1. While postoperative serious hypotony (≤5 mmHg) was detected in 34 (9.7%) eyes on day 1, it was not detected in any eyes at the end of the first week. None of the eyes required an additional gas tamponade or any other procedure in the early postoperative period due to hypotony. A total of 13 (3.7%) eyes were reoperated for recurrent vitreous hemorrhage; 23 (6.5%) eyes were reoperated on a second time, nine (2.5%) a third time, and 1 (0.2%) a fourth time for recurrent rhegmatogenous retinal detachment. Postoperative fibrinoid reaction was seen in 17 (4.8%) eyes on the first day and responded well to the medications. Cataract development was found in 61 (22.5%) of the 270 phakic eyes after a mean duration of 6.4 ± 3.5 months. Anatomical success was obtained in 86% of the patients and functional success in 72%. Conclusion: The 23G transconjunctival vitrectomy system is safe and effective in a wide field of vitreoretinal conditions. It is a good alternative to 20G and 25G techniques but needs some improvement mainly in regards to the instruments and related techniques; further larger controlled group studies are needed.
Tonic Pupil Following Pars Plana Vitrectomy and Endolaser
Benyamin Ebrahim,Larry Frohman,Marco Zarbin,Neelakshi Bhagat
Case Reports in Medicine , 2009, DOI: 10.1155/2009/970502
Abstract: Tonic pupil was observed in a 67 year-old patient following a retinal detachment repair with pars plana vitrectomy, endolaser and silicone oil tamponade performed under retrobulbar anesthesia. The probable location of disturbance is the postganglionic parasympathetic fibers in the short ciliary nerves along their course to the pupil in the suprachoroidal space. A likely explanation for this phenomenon is injury to short ciliary nerves by endolaser treatment.
Pars plana vitrectomy for primary rhegmatogenous retinal detachment  [cached]
Stephen G Schwartz,Harry W Flynn Jr
Clinical Ophthalmology , 2008,
Abstract: Stephen G Schwartz, Harry W Flynn JrDepartment of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USAAbstract: Pars plana vitrectomy (PPV) is growing in popularity for the treatment of primary rhegmatogenous retinal detachment (RD). PPV achieves favorable anatomic and visual outcomes in a wide variety of patients, especially in pseudophakic RD. A growing number of clinical series, both retrospective and prospective, have demonstrated generally comparable outcomes comparing PPV and scleral buckling (SB) under a variety of circumstances. The Scleral Buckling Versus Primary Vitrectomy in Rhegmatogenous Retinal Detachment (SPR) study is a multicenter, randomized, prospective, controlled clinical trial comparing SB versus PPV. This study should provide useful guidelines in the future. At this time, the choice of SB versus PPV should be based on the characteristics of the RD, the patient as a whole, and the experience and preference of the individual retinal surgeon.Keywords: pars plana vitrectomy, rhegmatogneous retinal detachment, scleral buckling
Pars plana vitrectomy in vitreous haemorrhage due to Eales′ disease  [cached]
Gadkari S,Kamdar P,Jehangir R,Shah N
Indian Journal of Ophthalmology , 1992,
Abstract: Repeated vitreous haemorrhage is a common occurrence in Eales disease. 25 eyes of unresolving vitreous haemorrhage were subjected to pars plana vitrectomy. 18 eyes improved to 1/60 or better. Vitreous rebleed was the commonest problem encountered. We discuss our experience, complications and limitations.
Phacoemulsification and pars plana vitrectomy: A combined procedure  [cached]
Jain Vandana,Kar Dharmesh,Natarajan S,Shome Debraj
Indian Journal of Ophthalmology , 2007,
Abstract: Aim: To describe the results of a combined procedure including phacoemulsification, insertion of posterior chamber intraocular lens (PCIOL) and pars plana vitrectomy (PPV) in eyes with vitreoretinal pathology and coexisting significant cataract. Design: Retrospective, consecutive, noncomparative, interventional case series. Materials and Methods: Medical records of patients who had undergone phacoemulsification, PPV and PCIOL implantation as a combined procedure between January 2000 and December 2004 were retrospectively reviewed. The main outcome measures were the anatomical success of retina, defined as reattached retina, intraoperative and postoperative complications and functional success in terms of final best corrected visual acuity. Results: In all, 65 eyes of 64 patients were included. The mean age of the patients was 50.9 years ± 17.1 (range, five to 82 years). Vitreous hemorrhage with or without retinal detachment (19 eyes, 29.2%) was the most common indication for the vitreoretinal procedure. Primary anatomical success of retina was achieved in 59 eyes (90.7%). Visual acuity improved in 48 eyes (73.8%), was unchanged in 12 eyes (18.5%) and deteriorated in five eyes (7.7%). Postoperative inflammation was significantly more in the subgroup of previously vitrectomized eyes (42%) ( P =0.014, Fisher exact test) compared to those which underwent primary vitrectomy. Conclusions: Combined surgery is a feasible option for patients with vitreoretinal diseases and cataract.
Page 1 /100
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.