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Pars plana vitrectomy

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https://www.readbyqxmd.com/read/29232338/internal-limiting-membrane-peeling-versus-inverted-flap-technique-for-treatment-of-full-thickness-macular-holes-a-comparative-study-in-a-large-series-of-patients
#1
Stanislao Rizzo, Ruggero Tartaro, Francesco Barca, Tomaso Caporossi, Daniela Bacherini, Fabrizio Giansanti
BACKGROUND: The inverted flap (IF) technique has recently been introduced in macular hole (MH) surgery. The IF technique has shown an increase of the success rate in the case of large MHs and in MHs associated with high myopia. This study reports the anatomical and functional results in a large series of patients affected by MH treated using pars plana vitrectomy and gas tamponade combined with internal limiting membrane (ILM) peeling or IF. METHODS: This is a retrospective, consecutive, nonrandomized comparative study of patients affected by idiopathic or myopic MH treated using small-gauge pars plana vitrectomy (25- or 23-gauge) between January 2011 and May 2016...
December 8, 2017: Retina
https://www.readbyqxmd.com/read/29232335/endogenous-klebsiella-pneumoniae-endophthalmitis-in-northern-california
#2
Ryan A Shields, Stephen J Smith, Carolyn K Pan, Diana V Do
PURPOSE: To report the clinical features, treatment modalities, and visual outcomes in 12 eyes with endogenous Klebsiella pneumoniae endophthalmitis (EKPE). METHODS: The medical records of all patients diagnosed with EKPE at Stanford Hospital (Palo Alto, CA) and Santa Clara Valley County Hospital (Santa Clara, CA) from January 2000 to March 2017 were retrospectively reviewed. RESULTS: A total of 10 patients (12 eyes) were diagnosed with EKPE...
December 11, 2017: Retina
https://www.readbyqxmd.com/read/29232332/outcomes-of-repeat-pars-plana-vitrectomy-after-failed-surgery-for-proliferative-vitreoretinopathy
#3
Ramsudha Narala, Nariman Nassiri, Chaesik Kim, Christian Mehregan, Sneha Padidam, Gary W Abrams
PURPOSE: To evaluate outcomes of repeat pars plana vitrectomy for proliferative vitreoretinopathy after previous failed pars plana vitrectomy. METHODS: This is a retrospective case series including 51 eyes of 50 patients who underwent repeat surgery after failed previous pars plana vitrectomy for proliferative vitreoretinopathy from 2000 to 2015 at the Kresge Eye Institute, Detroit, MI. Patients were classified into successful and unsuccessful groups. Success was defined as retinal reattachment, silicone oil removed, and best-corrected visual acuity (BCVA) ≥5/200 at the final follow-up visit...
December 11, 2017: Retina
https://www.readbyqxmd.com/read/29232331/theoretical-gas-concentrations-achieving-100-fill-of-the-vitreous-cavity-in-the-postoperative-period-a-gas-eye-model-study
#4
Tom H Williamson, Jean-Yves Guillemaut, Sheldon K Hall, Joseph C Hutter, Tony Goddard
PURPOSE: To determine the concentrations of different gas tamponades in air to achieve 100% fill of the vitreous cavity postoperatively and to examine the influence of eye volume on these concentrations. METHODS: A mathematical model of the mass transfer dynamics of tamponade and blood gases (O2, N2, and CO2) when injected into the eye was used. Mass transfer surface areas were calculated from published anatomical data. The model has been calibrated from published volumetric decay and composition results for three gases sulphahexafluoride (SF6), hexafluoroethane (C2F6), or perfluoropropane (C3F8)...
December 11, 2017: Retina
https://www.readbyqxmd.com/read/29217945/a-3-year-review-of-the-outcome-of-pars-plana-vitrectomy-for-dropped-lens-fragments-after-cataract-surgery-in-a-tertiary-eye-hospital-in-dhaka-bangladesh
#5
Lateefat Olokoba, Tajul Islam, Nazmun Nahar, Abdulraheem Mahmoud, Abdulfatai Olokoba
Background: Dropped lens fragments into the vitreous are uncommon, but potentially sight threatening complications of cataract surgery. The recommended approach for removal of dropped lens matter is pars plana vitrectomy with or without ultrasonic emulsification with the fragmatome. This study aimed to determine the visual outcome following pars plana vitrectomy for dropped lens fragments complicating cataract surgery at 6 weeks, 3 months and 6 months. Methods: This study is a retrospective review of patients who had PPV as treatment for dropped lens fragments complicating cataract surgery at Ispahani Islamia Eye hospital and Institute...
July 2017: Ethiopian Journal of Health Sciences
https://www.readbyqxmd.com/read/29217351/endophthalmitis-then-and-now
#6
Nidhi Relhan, Richard K Forster, Harry W Flynn
PURPOSE: To report historically evolving strategies (then and now) in prevention and management of endophthalmitis. DESIGN: A perspective on relevant topics in the prophylaxis and management of endophthalmitis. METHODOLOGY: This is an author selected review of studies leading to changes in strategies for endophthalmitis management over the last 100 years. RESULTS: The current perspective discusses the trends and strategies over the past century...
December 4, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/29215958/postoperative-complications-of-pars-plana-vitrectomy-for-diabetic-retinal-disease
#7
Gary L Yau, Paolo S Silva, Paul G Arrigg, Jennifer K Sun
Despite recent advances in the medical management of diabetic retinal disease, there remain established indications for vitreoretinal surgery in the treatment of severe proliferative diabetic retinopathy. These include non-clearing vitreous hemorrhage and tractional retinal detachment. Advances in surgical instrumentation, technique, and experience have led to improved visual outcomes, as well as a corresponding decrease in the incidence of postoperative complications. However, the presence of systemic and ocular factors in diabetic patients increases the risk of adverse events compared to non-diabetic individuals...
December 7, 2017: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/29214057/primary-rhegmatogenous-retinal-detachment-with-inferior-retinal-breaks-postoperative-prone-positioning-results-1%C3%A2-day-versus-7%C3%A2-days
#8
Radwan Ajlan, Jordan Isenberg, Ghassan Cordahi, Renaud Duval, Sébastien Olivier, Flavio Rezende
Background: To compare the primary anatomical outcome of pars plana vitrectomy, 360° peripheral endolaser, and 15% octafluoropropane C3F8 gas tamponade in patients with uncomplicated rhegmatogenous detachment and inferior retinal breaks, after 24-h postoperative prone positioning to similar patients with 1 week postoperative prone positioning. Methods: Records of 5500 patients who underwent pars plana vitrectomy between 2008 and 2015 were retrieved. Collected data included age, gender, number of retinal quadrants with retinal breaks, number of retinal breaks, macula status on presentation (attached or detached), phakic status (phakic, pseudophakic, or aphakic), and primary anatomical outcome (at 1 and 3 months post-operative)...
2017: International Journal of Retina and Vitreous
https://www.readbyqxmd.com/read/29210965/a-case-of-retinal-metastasis-of-laryngeal-squamous-cell-carcinoma-with-histopathologic-confirmation-by-vitrectomy-assisted-en-block-extraction
#9
Akira Tetsumoto, Hisanori Imai, Akiko Miki, Makoto Nakamura
BACKGROUND/PURPOSE: To present a case report of retinal metastasis of laryngeal squamous cell carcinoma that was diagnosed by a histopathologic finding from the surgically extracted tumor tissue. METHODS: A 66-year-old man, who was suffered from the treatment-resistant laryngeal carcinoma, was referred to our department because of visual field defect in his right eye. A fundus examination revealed a parafoveal white retinal lesion, which rapidly expanded to the central fovea and decreased the visual acuity...
November 23, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/29210960/dislodgement-of-fluocinolone-acetonide-intravitreal-implant-into-the-infusion-cannula-during-vitrectomy-for-retinal-detachment
#10
Walter Andreatta, Ibrahim Elaraoud, Arijit Mitra
BACKGROUND/PURPOSE: To report a case of dislodgement of an Iluvien (fluocinolone acetonide) intravitreal implant into the infusion cannula during pars plana vitrectomy for retinal detachment. METHODS: The patient's surgery was video recorded, and the medical notes were reviewed retrospectively. RESULTS: A patient developed a macula off retinal detachment over 1 year after intravitreal injection of Iluvien for diabetic maculopathy. The patient underwent pars plana vitrectomy, removal of implant, and successful retinal reattachment...
November 23, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/29210940/internal-limiting-membrane-peeling-in-macular-hole-surgery-why-when-and-how
#11
Irini P Chatziralli, Panagiotis G Theodossiadis, David H W Steel
PURPOSE: To review the current rationale for internal limiting membrane (ILM) peeling in macular hole (MH) surgery and to discuss the evidence base behind why, when, and how surgeons peel the ILM. METHODS: Review of the current literature. RESULTS: Pars plana vitrectomy is an effective treatment for idiopathic MH, and peeling of the ILM has been shown to improve closure rates and to prevent postoperative reopening. However, some authors argue against ILM peeling because it results in a number of changes in retinal structure and function and may not be necessary in all cases...
November 23, 2017: Retina
https://www.readbyqxmd.com/read/29208836/clinical-outcomes-in-traumatic-pseudophacocele-a-rare-clinical-entity
#12
Priya Narang, Amar Agarwal
PURPOSE: The purpose of this study is to evaluate the clinical outcomes in patients with traumatic pseudophacocele. METHODS: In this retrospective, interventional case series, scleral wound repair with pars plana vitrectomy and glued intrascleral fixation of an intraocular lens (glued IOL) was performed in 5 eyes of 5 patients. Pupilloplasty was performed in 3 cases whereas aniridia glued IOL fixation was done in 1 case that had total avulsion and loss of iris tissue...
December 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29208822/b-hex-pupil-expander-pupil-expansion-redefined
#13
Suven Bhattacharjee
The B-HEX® Pupil Expander (Med Invent Devices) is a disposable 6.5 mm flexible hexagonal device with notches at corners and flanges at sides. Alternate flanges with positioning holes are tucked under the iris to engage the notches to the margin of the pupil to provide a 5.5 mm expanded pupil. Unlike devices with scrolls or pockets which require an injector to avoid snagging the incision, the preloaded B-HEX is inserted and removed through a 1 mm or larger incision using a manipulator or 23-gauge micro-forceps...
December 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29200823/six-month-postoperative-outcomes-of-intraoperative-oct-guided-surgical-cystotomy-for-refractory-cystoid-macular-edema-in-diabetic-eyes
#14
Yuichi Asahina, Naoko Tachi, Yumi Asahina, Kayoko Yoshimura, Yoshiki Ueta, Yoshihiro Hashimoto
Purpose: This study evaluated the outcomes of surgical cystotomy for recurrent diabetic cystoid macular edema (CME). Patients and methods: We analyzed 20 eyes with a clinical diagnosis of diabetic retinopathy and refractory CME. Release of vitreoretinal adhesion, epiretinal membrane (ERM) and internal limiting membrane (ILM) peeling and cystotomy guided by intraoperative optical coherence tomography (iOCT) were performed in every patient. Pars plana vitrectomy was also performed in 17 patients, 11 of whom also underwent lensectomy and intraocular lens implantation...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/29190624/extreme-surgical-maneuvers-in-fungal-endophthalmitis
#15
María Isabel Relimpio-López, María Gessa-Sorroche, Antonio Manuel Garrido-Hermosilla, Concepción Díaz-Ruiz, Jesús Montero-Iruzubieta, Jaime Etxebarría-Ecenarro, Diego Ruiz-Casas, Enrique Rodríguez-de-la-Rúa-Franch
PURPOSE: To present the different evolution of 2 cases of endophthalmitis caused by Fusarium solani, an aggressive filamentous fungus, depending on the medical and surgical treatment performed. METHODS: We present 2 cases of endophthalmitis caused by Fusarium solani. Topical, intrastromal, intravitreal, and systemic antifungal treatment (natamycin, voriconazole, amphotericin B) failed in both cases. Corneal perforation took place in one of them, being unsuccessfully treated with cyanoacrylate and several amniotic membrane transplants...
November 30, 2017: Ophthalmologica. Journal International D'ophtalmologie
https://www.readbyqxmd.com/read/29188071/postoperative-tropheryma-whipplei-endophthalmitis-a-case-report-highlighting-the-additive-value-of-molecular-testing
#16
Julia Dick, Patrizia Krauß, Jost Hillenkamp, Britta Kohlmorgen, Christoph Schoen
Introduction.Tropheryma whipplei is the causative agent of Whipple's disease. Gastrointestinal and lymphatic tissues are affected in the majority of cases, resulting in diarrhoea, malabsorption and fever. Here, we report a rare case of ocular manifestation in a patient lacking the typical Whipple symptoms. Case presentation. A 74-year-old Caucasian female presented with blurred vision in the right eye over a period of 1-2 months, accompanied by stinging pain and conjunctival hyperaemia for the last 2 days...
October 2017: JMM Case Reports
https://www.readbyqxmd.com/read/29181328/combined-penetrating-keratoplasty-pars-plana-vitrectomy-and-ahmed-glaucoma-valve-implant-after-open-globe-injury-a-challenging-approach
#17
João Beato, António B Melo, Pedro A Faria, Luís Torrão, Fernando Falcão-Reis
No abstract text is available yet for this article.
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29176537/novel-surgical-technique-for-inducing-posterior-vitreous-detachment-during-pars-plana-vitrectomy-for-pediatric-patients-using-a-flexible-loop
#18
Linda A Cernichiaro-Espinosa, Audina M Berrocal
PURPOSE: Vitreoretinal surgical diseases in children are challenging because of the complex features of the vitreous, retina, and the interface between them. Posterior vitreous detachment is a crucial step during vitrectomy. To date, pharmacologic vitreolysis that liquefies the vitreous and disrupts the posterior hyaloid attachment to the retina has been studied. However, there are reports of unexplained adverse effects. We describe a case performed with a reproducible, safe and time-saving technique using a commercially available flexible loop for posterior vitreous detachment induction in a pediatric patient...
November 22, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/29176526/macular-hole-formation-after-pars-plana-vitrectomy-for-primary-vitreoretinal-lymphoma
#19
Masatoshi Haruta, Chikako Taguchi, Ryoji Yamakawa
PURPOSE: To report a case of primary vitreoretinal lymphoma in which a macular hole developed after a diagnostic pars plana vitrectomy. METHODS: A retrospective interventional case report. RESULTS: A 65-year-old woman presented with worsening vision in the left eye. Fundus examination showed vitreous haze and multifocal, yellow-white infiltrates in the retina and under the retinal pigment epithelium in the left eye. She underwent a diagnostic pars plana vitrectomy in that eye...
November 22, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/29172849/postoperative-endophthalmitis-a-review-of-risk-factors-prophylaxis-incidence-microbiology-treatment-and-outcomes
#20
Safa Rahmani, Dean Eliott
Postoperative endophthalmitis is one of the most feared complications of intraocular surgery. The most common types of intraocular surgeries performed worldwide are cataract extraction, glaucoma drainage implants/trabeculectomy, and pars plana vitrectomy. This review will focus on the clinical features, risk factors, prophylaxis, and treatment of endophthalmitis in these three main intraocular surgeries.
November 27, 2017: Seminars in Ophthalmology
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