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Bhuvan Chanana, Garima Kajla, Sudhank Bharti
Glaucoma drainage devices are mostly used for refractory glaucoma. Early postoperative complications include flat anterior chamber, choroidal effusion, and suprachoroidal hemorrhage. An 8-year-old male patient with a prior history of vitreous surgery for traumatic vitreous hemorrhage, presented to us with angle recession glaucoma in his right eye. His intraocular pressure (IOP) was 44 mmHg despite maximum antiglaucoma medication. Ahmed glaucoma valve (AGV) surgery was performed to control his IOP. In the early postoperative period, the patient developed premacular subinternal limiting membrane (ILM) hemorrhage, which did not resolve even after 4 weeks...
May 2018: Oman Journal of Ophthalmology
Gonzalo García de Oteyza, Javier Elizalde
Retinal acute toxicity may be produced by several etiologies. Iatrogenic toxicity is one of the most-feared complications related to vitreoretinal surgery. The authors report a case of retinal acute toxicity due to the use of perfluorooctane during an uneventful retinal detachment surgery done elsewhere. The aim of this report is to describe the clinical and optical coherence tomography features of this complication, which unfortunately occurred in more than 100 cases in Spain. [Ophthalmic Surg Lasers Imaging Retina...
June 1, 2018: Ophthalmic Surgery, Lasers & Imaging Retina
Bozho Todorich, Maxwell S Stem, Tarek S Hassan, George A Williams, Lisa J Faia
BACKGROUND AND OBJECTIVE: To describe a novel technique of scleral indentation and transillumination for single-surgeon, unassisted vitrectomy and vitreous base shaving enhanced with a digital heads-up display system (NGENUITY 3D Visualization System; Alcon, Fort Worth, TX). PATIENTS AND METHODS: This technique was utilized in six eyes of six patients during vitrectomy surgery for common vitreoretinal surgical diagnoses. In each case, the transillumination was performed with the traditional intraocular light pipe set at 100% power, placed obliquely just posterior to the vitreous base insertion, with or without a transillumination adapter...
June 1, 2018: Ophthalmic Surgery, Lasers & Imaging Retina
Catherine P Creuzot-Garcher, Anne Sophie Mariet, Eric Benzenine, Vincent Daien, Jean-François Korobelnik, Alain M Bron, Catherine Quantin
PURPOSE: To assess the incidence of acute postoperative endophthalmitis (POE) after cataract surgery combined with corneal, glaucoma or vitreoretinal surgical procedures from 2005 to 2014 in France. METHODS: In this cohort study, acute POE occurring within 6 weeks after surgery was identified by means of billing codes recorded in a national database in patients operated for cataract extraction with phacoemulsification, or corneal, glaucoma or vitreoretinal surgical procedures, either combined or stand-alone...
June 20, 2018: British Journal of Ophthalmology
Takakuni Kitagaki, Hiroyuki Suzuki, Ryohsuke Kohmoto, Shou Oosuka, Masanori Fukumoto, Takaki Sato, Takatoshi Kobayashi, Teruyo Kida, Tsunehiko Ikeda
INTRODUCTION: Asteroid hyalosis (AH) is characterized by mild vitreous-body liquefaction and a reduced likelihood of posterior vitreous detachment (PVD). Here, we report the clinical features of 2 cases of macular hole (MH) in eyes with AH. The extent of retinal vitreous adhesion at the time of vitreous surgery, the presence or absence of iatrogenic retinal breaks, and the postoperative course was examined in regard to the association with AH. CASE PRESENTATION: Case 1 involved a 67-year-old female with decreased visual acuity in her left eye...
June 2018: Medicine (Baltimore)
Ebru Nevin Cetin, Önder Demirtaş, Nihal Cesur Özbakış, Gökhan Pekel
BACKGROUND: Macular contraction after anti-vascular endothelial growth factor (anti-VEGF) injections for diabetic macular edema (DME) was evaluated by documenting the displacement of macular capillary vessels and epiretinal membrane (ERM) formation. METHODS: A total of 130 eyes were included in this retrospective study. The study group consisted of 63 eyes which had intravitreal anti-VEGF injections for DME, and the control group included 67 eyes without central DME...
June 20, 2018: Graefe's Archive for Clinical and Experimental Ophthalmology
Minlu Song, Mengxi Shen, Yanping Zhou, Kairong Zheng, Yuanqi Zhai, Meichun Xiao, Xiaohan Wang, Fenghua Wang, Xiaodong Sun
PURPOSE: To observe features of the posterior vitreous and vitreoretinal interface in highly myopic eyes with retinoschisis using enhanced vitreous imaging optical coherence tomography. METHODS: Comprehensive ophthalmologic examination and enhanced vitreous imaging optical coherence tomography were performed in 77 eyes of 63 patients with highly myopic retinoschisis. Two different modes of spectral domain optical coherence tomography were employed to estimate retinoschisis and the posterior vitreous features in optical coherence tomography images, respectively...
June 13, 2018: Retina
Carsten Meyer
No abstract text is available yet for this article.
June 16, 2018: Graefe's Archive for Clinical and Experimental Ophthalmology
Azusa Fujikawa, Yasser Helmy Mohamed, Hirofumi Kinoshita, Makiko Matsumoto, Masafumi Uematsu, Eiko Tsuiki, Kiyoshi Suzuma, Takashi Kitaoka
BACKGROUND: Ocular trauma is an important cause of visual loss worldwide. Improvements in our knowledge of the pathophysiology and management of ocular trauma during the past 30 years, in conjunction with advances in the instrumentation and techniques of ocular surgery, have improved the efficacy of vitreoretinal surgery in injured eyes. The aim of the current study was to determine the visual outcomes and prognostic factors of open-globe injuries in the Japanese population. METHODS: Retrospective study of 59 eyes of 59 patients presented with open globe injuries between September 2008 and March 2014 at Nagasaki University Hospital was conducted...
June 8, 2018: BMC Ophthalmology
Nathan R Haines, Niranjan Manoharan, Jeffrey L Olson, Angelo D'Alessandro, Julie A Reisz
The vitreous humor is a highly aqueous eye fluid interfacing with the retina and lens and providing shape. Its molecular composition provides a readout for the eye's physiological status. Changes in cellular metabolism underlie vitreoretinal pathologies, but despite routine surgical collection of vitreous, only limited reports of metabolism in the vitreous of human patients have been described. Here, vitreous samples from patients with rhegmatogenous retinal detachment (n=25) and proliferative diabetic retinopathy (n=9) were profiled along with control human vitreous samples (n=8) by untargeted mass spectrometry-based metabolomics...
June 7, 2018: Journal of Proteome Research
Zhongjing Lin, Yanwei Chen, Sha Gao, Yisheng Zhong, Xi Shen
BACKGROUND: To report a case series in which a modified technique was used to remove retained submacular perfluorocarbon liquid (PFCL) secondary to vitreoretinal surgery for rhegmatogenous retinal detachment. CASE PRESENTATION: Four patients who had undergone pars plana vitrectomy for rhegmatogenous retinal detachment were further treated with surgical intervention because of retained submacular PFCL. With a three-port pars plana approach, after the internal limiting membrane peeling with indocyanine green staining, a 38-gauge flexible cannula was used to aspirate the submacular perfluorocarbon bubble, followed by fluid-air exchange and air injection into vitreous cavity...
June 4, 2018: BMC Ophthalmology
Damien C M Yeo, Aaron Nagiel, Unikora Yang, Thomas C Lee, Sui Chien Wong
Endoscopic vitrectomy is a useful and unique adjunct to microincision vitreoretinal surgery. The optical properties of endoscopy allow for some clinically advantageous approaches that are not possible with regular microscope viewing systems, namely, the ability to both bypass optically signficant anterior segment opacities and directly visualize dificult-to-access retroirideal, retrolental, and anterior retinal structures in their natural anatomical configuration. The surgical benefits include improved surgical access to the pars plana, pars plicata, ciliary sulcus, ciliary body, and peripheral lens, along with unique access to anterior traction in complex pediatric anterior detachments, particularly in retinopathy of prematurity...
May 30, 2018: Asia-Pacific Journal of Ophthalmology
Philipp Simon Koelbl, Jens Ulrich Werner, Christian Enders, Christian Lingenfelder, Frank H J Koch, Martin Hessling
PURPOSE: Surgical or diagnostic procedures are often accompanied by a short-term increase in intraocular pressure (IOP). A short-term increase in IOP can occur during refractive procedures, vitreoretinal surgery, transillumination, photocoagulation, or cryocoagulation. A porcine eye model was chosen (n = 89) to compile comparable study data and to de termine correlations between the force induced and the resulting intraocular pressure while excluding the effect of surgeons. METHODS: The IOP was measured in the anterior chamber...
May 31, 2018: Ophthalmic Research
Katarzyna Michalska-Małecka, Justyna Sierocka-Stępień, Aneta Michalik-Jakubek, Katarzyna Witek, Katarzyna Nowomiejska, Anselm Jünemann, Robert Rejdak
PURPOSE: The aim of this study was to evaluate the effectiveness of treatment and the restoration of the anatomic conditions (retinal reattachment) in rhegmatogenous retinal detachment treated by pars plana vitrectomy (PPV) using air as endotamponade. METHODS: Twelve patients (12 eyes) with rhegmatogenous retinal detachment were included in the study. These were eyes with retinal detachment both with and without macular involvement. During the PPV surgery, the peripheral and central part of the vitreous body was excised to eliminate the formation of vitreoretinal traction after surgery, laser therapy was performed peripherally and in retinal openings, and the eyeball was filled with filtered air...
June 2018: Medicine (Baltimore)
Alper Mete, Sabit Kimyon, Oguzhan Saygılı, Kıvanç Güngör, Mithat Temizer
PURPOSE: To compare the use of topical anesthesia and retrobulbar anesthesia during silicone oil removal with a mixed pars plana technique, through evaluating the pain experience of patients. METHODS: We selected patients according to their behavior during previous vitreoretinal surgery and ophthalmologic examinations and divided them into two anesthesia groups: topical (n=36) and retrobulbar (n=33). We used a mixed technique for the passive removal of silicone oil in both groups...
April 2018: Arquivos Brasileiros de Oftalmologia
Ankur Gupta, Saurabh Singh, Berk Gonenc, Marin Kobilarov, Iulian Iordachita
In vitreoretinal surgery instruments are inserted through the sclera to perform precise surgical maneuvers inside the eyeball, which exceeds typical human capabilities. Robotic assistance can enhance the skills of a novice surgeon, provide guidance during tool manipulation based on the desired behavior defined by expert surgeons' maneuvers, and consequently improve the surgical outcome. This paper presents an experimental study characterizing the safe/desired magnitude of forces between the surgical instrument and the sclera insertion port as a function of the tool insertion depth...
October 2017: Proceedings of IEEE Sensors
Haroon Tayyab, Asad Aslam Khan, Muhammad Ali Ayaz Sadiq, Irfan Karamat
Objective: To compare effectiveness of releasable transconjunctival sutures in 23 gauge vitrectomy and standard 20 gauge vitrectomy. Methods: This prospective comparative study was conducted in Department of Vitreoretinal Surgery, Al Ehsan Eye Hospital, Lahore from June 2016 to March 2017. It included 84 patients in total (Group-A: 42 patients underwent 23 gauge releasable suture vitrectomy; Group-B: 42 patients who underwent standard 20 gauge vitrectomy). Pre operative and post operative best corrected visual acuity, surgical duration, pre and post operative intraocular pressure and complication profile was compared between two groups...
March 2018: Pakistan Journal of Medical Sciences Quarterly
Maxwell S Stem, Omar Moinuddin, Noah Kline, Aristomenis Thanos, Prethy Rao, George A Williams, Tarek S Hassan
Importance: Neovascular age-related macular degeneration (nvAMD) is a leading cause of vision loss. The optimal screening protocol to detect choroidal neovascularization (CNV) in fellow eyes of patients undergoing treatment for unilateral CNV has not been determined. Objective: To compare the visual outcomes of eyes with established, active nvAMD in index eyes with outcomes of fellow eyes that subsequently developed CNV during the management protocol. Design, Setting, and Participants: In this retrospective single-center case series conducted at a private vitreoretinal practice, data were collected for all patients treated for bilateral nvAMD between October 1, 2015, and October 1, 2016, for whom we could determine the date of index eye and fellow eye conversion to nvAMD (n = 1600)...
May 10, 2018: JAMA Ophthalmology
Emily M Zepeda, Ayesha Shariff, Thomas B Gillette, Laura Grant, Leona Ding, Kristina Tarczy-Hornoch, Michelle T Cabrera
Importance: Handheld spectral-domain optical coherence tomography (SD-OCT) can provide insights into the complex interactions occurring at the vitreoretinal interface in retinopathy of prematurity (ROP) to enhance our understanding of ROP pathology. Objective: To characterize vitreous bands in premature infants with use of handheld SD-OCT. Design, Setting, and Participants: Prospective cohort study conducted from July 7, 2015, to February 28, 2017, at 2 university-based neonatal intensive care units...
May 17, 2018: JAMA Ophthalmology
Jason Ho, Anna Grabowska, Marta Ugarte, Mahiul Mk Muqit
AIMS: To report anatomical and functional outcomes in patients with proliferative sickle retinopathy (PSR) who underwent 23-gauge (23G) and 20-gauge (20G) vitrectomy. METHODS: Retrospective consecutive case series of patients who underwent vitreoretinal intervention for complications of PSR between April 2009 and February 2015. Operations were performed at a tertiary referral centre, Moorfields Eye Hospital. Visual acuity and anatomical success rates were evaluated for PSR complicated by retinal detachment, tractional vitreous haemorrhage and macular hole...
May 22, 2018: Eye
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