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Facoemulsificación en ojos post-vitrectomía pars plana
Suárez-Tatá,M; Villase?or-Díez,J; Suárez-Tatá,LM; Suárez-Licona,AM; García-Gardu?o,LM; Quiroz Mercado,H; Villar Kuri,J;
Archivos de la Sociedad Espa?ola de Oftalmología , 2004, DOI: 10.4321/S0365-66912004001100004
Abstract: objective: this study focuses on determining the intra- and post-operative complications stemming from technical difficulties, anatomical aspects, intraoperatory management and visual outcome of post-vitrectomized patients that undergo phacoemulsification. method: in this prospective, longitudinal, observational and descriptive study phacoemulsification was performed in 25 post-vitrectomized eyes that required cataract surgery. pre-surgical variables: sex, age, affected eye, visual accuity, underlying vitreoretinal disease, anterior segment morphological findings such as: cataract density and pupil alterations. intrasurgical variables: characteristic of anterior chamber and pupil, phacoemulsification technique and time and the presence of complications. post-surgical variables were also registered: visual capacity and the presence of complications. minimum six-month follow-up period. results: the average interval between pars plana vitrectomy and phacoemulsification was 18.5 months. silicone oil was the most frequent tamponade used in our serie (44%). biomicroscopical findings were miosis 28% and posterior synechies 24%. the average interval of phaco time was 2.26 minutes. the intraoperative findings were fluctuations in the anterior chamber depth (24%) and anterior capsular tears (12%). the postoperative complications most frequently seen were posterior capsular plaque (28%) and corneal edema (16%). conclusions: phacoemulsification is a safe and effective technique in eyes after pars plana vitrectomy that require cataract surgery. the surgeon must be aware of the morphological and anatomical findings of these eyes. visual rehabilitation will generally be determined by the presence of an underlying vitreo-retinal pathology.
Optic capture pars plana lensectomy  [cached]
Lee JE
Clinical Ophthalmology , 2012,
Abstract: Joo Eun LeeDepartment of Ophthalmology, Inje University College of Medicine, Busan, South KoreaObjective: To describe an optic capture pars plana lensectomy technique.Methods: After core vitrectomy, pars plana lensectomy is performed with preservation of the anterior capsule. Capsulorhexis is performed on the preserved anterior capsule through a 2.8 mm clear corneal incision. An intraocular lens (IOL) is placed in the ciliary sulcus, and then the optic of the IOL is pushed back to the vitreous cavity so that the optic is captured by the surrounding capsulorhexis margin.Results: The captured IOL-capsule diaphragm remained stable during air–fluid exchange and prevented air prolapse to the anterior chamber. IOL stability and a clear visual axis were preserved during the follow-up period.Conclusion: With this modified pars plana lensectomy technique, stable IOL position and clear visual axis can be maintained when a pars plana approach is needed during combined cataract and vitreoretinal surgery.Keywords: lensectomy, optic capture, pars plana lensectomy, vitrectomy
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.
Optic capture pars plana lensectomy
Lee JE
Clinical Ophthalmology , 2012, DOI: http://dx.doi.org/10.2147/OPTH.S38367
Abstract: ic capture pars plana lensectomy Case report (1225) Total Article Views Authors: Lee JE Published Date October 2012 Volume 2012:6 Pages 1767 - 1770 DOI: http://dx.doi.org/10.2147/OPTH.S38367 Received: 21 September 2012 Accepted: 11 October 2012 Published: 31 October 2012 Joo Eun Lee Department of Ophthalmology, Inje University College of Medicine, Busan, South Korea Objective: To describe an optic capture pars plana lensectomy technique. Methods: After core vitrectomy, pars plana lensectomy is performed with preservation of the anterior capsule. Capsulorhexis is performed on the preserved anterior capsule through a 2.8 mm clear corneal incision. An intraocular lens (IOL) is placed in the ciliary sulcus, and then the optic of the IOL is pushed back to the vitreous cavity so that the optic is captured by the surrounding capsulorhexis margin. Results: The captured IOL-capsule diaphragm remained stable during air–fluid exchange and prevented air prolapse to the anterior chamber. IOL stability and a clear visual axis were preserved during the follow-up period. Conclusion: With this modified pars plana lensectomy technique, stable IOL position and clear visual axis can be maintained when a pars plana approach is needed during combined cataract and vitreoretinal surgery.
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.
Efficacy and safety of the pars plana clip in the Ahmed valve device inserted via the pars plana in patients with refractory glaucoma  [cached]
Manuel Diaz-Llopis,David Salom,Salvador García-Delpech,et al
Clinical Ophthalmology , 2010,
Abstract: Manuel Diaz-Llopis1,2,3, David Salom1,3, Salvador García-Delpech1,2,3, Patricia Udaondo1,3, Jose Maria Millan3,5, J Fernando Arevalo61Department of Ophthalmology, La Fe University Hospital of Valencia, Valencia, Spain; 2Department of Ophthalmology of the Valencia University, Valencia, Spain; 3Biomedical Network Research Centre on Rare Diseases (CIBERER), Valencia, Spain; 4Catholic University San Vicente Martir, Valencia, Spain; 5Department of Genetics, La Fe University Hospital of Valencia, Valencia, Spain; 6Clinica Oftalmologica Centro Caracas, Retina and VItreous Service, Caracas, DC, VenezuelaPurpose: To evaluate the efficacy and safety of the pars plana clip (PPC) in the Ahmed valve tube inserted via the pars plana in patients with secondary refractory glaucomas.Methods: Prospective and interventional case series that included 10 patients with secondary refractory glaucoma. The pars plana vitrectomy and the implant of the modified tube were performed during the same surgery. Control of intraocular pressure (IOP) and the development of intra- and postoperative complications were evaluated during the follow-up.Results: Follow-up time was twelve months in all the patients. Control of IOP was achieved in 90% of patients, and 70% needed no antiglaucoma treatment. The complications that occurred were transient hypotony in three cases, choroidal detachment in two cases, and one case of intraocular hemorrhage. No case of tube extrusion or tube kink was observed.Conclusions: Our data suggests that implantation of the Ahmed tube modified with the PPC via the pars plana is safe and effective in patients with secondary refractory glaucomas. Keywords: pars plana clip, Ahmed valve, refractory glaucoma, pars plana vitrectomy
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
Ultrasound biomicroscopy in the comparison of the anterior segment morphometry before and after pars plana vitrectomy
Marigo, Flavio de Andrade;Zisman, Márcio;Nehemy, Márcio Bittar;Marigo, Patrícia Vianna Brand?o;
Arquivos Brasileiros de Oftalmologia , 2006, DOI: 10.1590/S0004-27492006000600023
Abstract: purpose: to determine if pars plana vitrectomy induces long-term changes in the anterior segment anatomy by means of ultrasound biomicroscopy. methods: a prospective case series study was undertaken of consecutive patients referred to a tertiary eye care centre for pars plana vitrectomy as the only procedure. twenty eyes of 20 patients undergoing pars plana vitrectomy alone were studied by ultrasound biomicroscopy. silicone oil or scleral buckle was not used in any of the included cases. the following morphometric parameters were compared before and after 3 months of surgery: anterior chamber depth, angle-opening distance at 500 μm from the scleral spur, trabecular-ciliary process distance, ciliary body thickness at 1, 2 and 3 millimeters from the scleral spur and measurement of the supraciliary space thickness, when fluid was detected. results: no statistically significant differences were found between the preoperative and the postoperative morphometric parameters. conclusion: uncomplicated pars plana vitrectomy does not induce any long-term change on anterior segment morphometry. based on these findings, the normal long-term pattern to be expected after pars plana vitrectomy is the conservation of the preoperative morphometry.
Pars plana vitrectomy for malignant glaucoma in nonglaucomatous and in filtered glaucomatous eyes  [cached]
Matlach J,Slobodda J,Grehn F,Klink T
Clinical Ophthalmology , 2012,
Abstract: Juliane Matlach, Joerg Slobodda, Franz Grehn, Thomas KlinkDepartment of Ophthalmology, University of Wuerzburg, Wuerzburg, GermanyPurpose: To assess the outcomes of pars plana vitrectomy for the treatment of malignant glaucoma in patients with and without previous filtration surgery.Patients and methods: Data of 15 patients developing malignant glaucoma after trabeculectomy (60%) or following ophthalmic interventions other than filtration surgery (40%) were recorded retrospectively. Pars plana vitrectomy was performed in case of failed medical or laser treatment recreating the normal pathway of aqueous humor. The main outcome measures were the postoperative intraocular pressure (IOP), the frequency of complications, and success rate based on the following criteria: IOP reduction by ≥20% and to ≤21 mmHg (definition one) or an IOP < 18 mmHg (definition two) with (qualified success) and without (complete success) glaucoma medication.Results: Vitrectomy reduced IOP from baseline in eyes with and without previous trabeculectomy during a median follow-up of 16.4 months (range 7 days to 58 months); although the majority of patients required glaucoma medication to reach desired IOP. The complete success rates were 11% (both definitions) for patients with filtering blebs and none of the patients without previous trabeculectomy had complete success at the 12-month visit. Complications were few and included transient shallowing of the anterior chamber, choroidal detachment, corneal decompensation, filtering bleb failure, and need for further IOP-lowering procedures.Conclusion: Pars plana vitrectomy is equally effective for malignant glaucoma caused by trabeculectomy or interventions other than filtration surgery, although IOP-lowering medication is necessary in nearly all cases to maintain target IOP.Keywords: ciliolenticular block glaucoma, malignant glaucoma, pars plana vitrectomy, trabeculectomy
Efficacy and safety of the pars plana clip in the Ahmed valve device inserted via the pars plana in patients with refractory glaucoma
Manuel Diaz-Llopis, David Salom, Salvador García-Delpech, et al
Clinical Ophthalmology , 2010, DOI: http://dx.doi.org/10.2147/OPTH.S10005
Abstract: acy and safety of the pars plana clip in the Ahmed valve device inserted via the pars plana in patients with refractory glaucoma Original Research (4093) Total Article Views Authors: Manuel Diaz-Llopis, David Salom, Salvador García-Delpech, et al Published Date May 2010 Volume 2010:4 Pages 411 - 416 DOI: http://dx.doi.org/10.2147/OPTH.S10005 Manuel Diaz-Llopis1,2,3, David Salom1,3, Salvador García-Delpech1,2,3, Patricia Udaondo1,3, Jose Maria Millan3,5, J Fernando Arevalo6 1Department of Ophthalmology, La Fe University Hospital of Valencia, Valencia, Spain; 2Department of Ophthalmology of the Valencia University, Valencia, Spain; 3Biomedical Network Research Centre on Rare Diseases (CIBERER), Valencia, Spain; 4Catholic University San Vicente Martir, Valencia, Spain; 5Department of Genetics, La Fe University Hospital of Valencia, Valencia, Spain; 6Clinica Oftalmologica Centro Caracas, Retina and VItreous Service, Caracas, DC, Venezuela Purpose: To evaluate the efficacy and safety of the pars plana clip (PPC) in the Ahmed valve tube inserted via the pars plana in patients with secondary refractory glaucomas. Methods: Prospective and interventional case series that included 10 patients with secondary refractory glaucoma. The pars plana vitrectomy and the implant of the modified tube were performed during the same surgery. Control of intraocular pressure (IOP) and the development of intra- and postoperative complications were evaluated during the follow-up. Results: Follow-up time was twelve months in all the patients. Control of IOP was achieved in 90% of patients, and 70% needed no antiglaucoma treatment. The complications that occurred were transient hypotony in three cases, choroidal detachment in two cases, and one case of intraocular hemorrhage. No case of tube extrusion or tube kink was observed. Conclusions: Our data suggests that implantation of the Ahmed tube modified with the PPC via the pars plana is safe and effective in patients with secondary refractory glaucomas.
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