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Posterior vitreous detachment

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https://www.readbyqxmd.com/read/28867131/posterior-vitreous-detachment-and-the-posterior-hyaloid-membrane
#1
Gregory S Fincham, Sean James, Carl Spickett, Michael Hollingshead, Christopher Thrasivoulou, Arabella V Poulson, Annie McNinch, Allan Richards, David Snead, Gloria A Limb, Martin P Snead
PURPOSE: Despite posterior vitreous detachment being a common ocular event affecting most individuals in an aging population, there is little consensus regarding its precise anatomic definition. We investigated the morphologic appearance and molecular composition of the posterior hyaloid membrane to determine whether the structure clinically observed enveloping the posterior vitreous surface after posterior vitreous detachment is a true basement membrane and to postulate its origin. Understanding the relationship between the vitreous (in both its attached and detached state) and the internal limiting membrane of the retina is essential to understanding the cause of rhegmatogenous retinal detachment and vitreoretinal interface disorders, as well as potential future prophylactic and treatment strategies...
August 31, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28859118/tumor-parameters-predict-the-risk-of-side-effects-after-ruthenium-106-plaque-brachytherapy-of-uveal-melanomas
#2
Lisa Tarmann, Werner Wackernagel, Domagoj Ivastinovic, Mona Schneider, Peter Winkler, Gerald Langmann
BACKGROUND: To report on radiation-related side effects and complications after ruthenium-106 plaque brachytherapy of uveal melanomas. METHODS: Medical records of 143 eyes with uveal melanoma, treated by ruthenium-106 brachytherapy between 1997 and 2012 at a single center, were analyzed. We evaluated the occurrence of radiation-related side effects on the anterior and posterior segment of the eye. The influence of patient, tumor and treatment parameters on outcome was analyzed by multivariate time to event analysis considering competing risks...
2017: PloS One
https://www.readbyqxmd.com/read/28844322/incidence-risk-factors-and-outcomes-of-retinal-detachment-after-pediatric-cataract-surgery
#3
Sumita Agarkar, Varada Vinay Gokhale, Rajiv Raman, Muna Bhende, Gayathri Swaminathan, Mukesh Jain
PURPOSE: To report the incidence of, and to estimate the long-term risk and predisposing factors and the surgical outcomes for, retinal detachment (RD) after pediatric cataract surgery. DESIGN: Retrospective consecutive interventional case series. PARTICIPANTS: During the study period 1996 to 2007 at a tertiary eye care institute, 481 eyes of 295 children aged below 16 years with no other ocular and systemic anomalies who underwent lensectomy, posterior capsulorrhexis, and anterior vitrectomy combined with primary intraocular lens implantation were included...
August 22, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28834949/benefit-of-intraoperative-optical-coherence-tomography-for-vitreomacular-surgery-in-highly-myopic-eyes
#4
Elsa Bruyère, Elise Philippakis, Bénédicte Dupas, Pauline Nguyen-Kim, Ramin Tadayoni, Aude Couturier
PURPOSE: To report the feasibility and information provided by intraoperative optical coherence tomography (iOCT) during vitreomacular surgery in highly myopic eyes. METHODS: Retrospective observational case series on consecutive highly myopic eyes that underwent vitreomacular surgery with iOCT for epiretinal membrane (ERM), macular hole, and myopic foveoschisis. The main outcome was the qualitative and quantitative assessment of retinal changes: detection of persistent epiretinal structures, new openings, central macular thickness, and macular hole diameters after each step of the surgical procedure...
August 22, 2017: Retina
https://www.readbyqxmd.com/read/28828540/full-thickness-macular-hole-associated-with-congenital-simple-hamartoma-of-retinal-pigment-epithelium-cshrpe
#5
Panagiotis Stavrakas, Athanasios Vachtsevanos, Efthymia Karakosta, Nikos Kozeis, Magdalini Triantafylla, Paraschos Tranos
PURPOSE: To report a unique case of congenital simple hamartoma of retinal pigment epithelium (CSHRPE) associated with full-thickness macular hole (FTMH). METHODS: A 14-year-old female with a previous diagnosis of simple hamartoma of retinal pigment epithelium in the left eye presented with a 3-week onset of reduced visual acuity in the same eye. Complete ophthalmological examination with spectral domain ocular coherence tomography (SD-OCT) and autofluorescence imaging was carried out...
August 21, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28820850/ultrasonographic-findings-in-the-vitreous-of-patients-with-age-related-macular-degeneration-treated-with-intravitreal-anti-vascular-endothelial-growth-factor-injections
#6
Tamara Mato-Gondelle, Manuel F Bande, Laura Paniagua, María J Rodríguez-Cid, Maximino Abraldes, Maribel Fernández, María J Blanco-Teijeiro, Antonio Piñeiro
PURPOSE: We aimed to assess the relationship of repeated intravitreal injection of anti-vascular endothelial growth factor, the main treatment for exudative age-related macular degeneration, with changes in vitreous ultrasonographic findings in patients with age-related macular degeneration. METHODS: We retrospectively collected data from 41 patients (41 age-related macular degeneration eyes, 41 control eyes) on age, sex, number of injections, and type of anti-vascular endothelial growth factor (ranibizumab, aflibercept)...
August 16, 2017: Retina
https://www.readbyqxmd.com/read/28800017/atypical-form-of-retinopathy-of-prematurity-with-severe-fibrovascular-proliferation-in-the-optic-disk-region
#7
Tadashi Yokoi, Satoshi Katagiri, Miina Hiraoka, Yuri Nakayama, Katsuhiro Hosono, Yoshihiro Hotta, Sachiko Nishina, Noriyuki Azuma
PURPOSE: To describe severe fibrovascular proliferation that developed in the optic disk region in an atypical form of retinopathy of prematurity (ROP). METHODS: Retrospective observational case reports. RESULTS: Four patients (8 eyes) with ROP were included. Three patients were born very prematurely (24-25 weeks of gestational age; weight, 500-1,000 grams); 1 patient was born at 33 weeks of gestational age. Among all eight eyes of four patients who received prompt ROP screening and underwent laser photocoagulation, six eyes had atypical and severe fibrovascular proliferation mainly in the optic disk region; the other two eyes, including one eye with classic ROP and one eye with aggressive posterior ROP, did not have the atypical form...
August 9, 2017: Retina
https://www.readbyqxmd.com/read/28767551/ocriplasmin-for-vitreomacular-traction-looking-outside-the-macula-a-wide-field-optical-coherence-tomography-study
#8
Matteo G Cereda, Chiara Preziosa, Isabella DʼAgostino, Mariano Cozzi, Ferdinando Bottoni, Marco Pellegrini, Andrea Giani, Giovanni Staurenghi
PURPOSE: To evaluate baseline features and morphologic changes of vitreoretinal adhesion and outer retinal layers outside the macula after intravitreal ocriplasmin injection. To study the relation between vitreous detachment and attenuation of retinal outer segments signal. METHODS: Retrospective cases series of 15 eyes. Each eye was scanned with the 55° wide-field optical coherence tomography lens in 6 different locations, three horizontal B-scan (central, temporal, and nasal) and three vertical B-scan (central, superior, and inferior) at baseline, 1 week, 1 month, 3 months, and 6 months after injection...
August 1, 2017: Retina
https://www.readbyqxmd.com/read/28752984/-ultrasound-manifestations-of-eyes-of-pediatric-patients-with-morning-glory-syndrome
#9
Ju-Xian Liu, Yu-Jia Yang, Yan Luo, Mei Zhang, Ying-Yu Shi
OBJECTIVE: To analyze ultrasonic manifestations of eyes of pediatric patients with morning glory syndrome (MGS). METHODS: Clinical data and ultrasound (US) findings for six children (4 males and 2 females, 5-60 months old) diagnosed with MGS between 2005 and 2016 were reviewed. RESULTS: Of the 12 eyes, seven were diagnosed with MGS; one with cataract; the other four were normal. One child had both eyes diagnosed with MGS. Of the seven eyes with MGS (5 right, 2 left), one was small associated with persistent hyperplastic primary vitreous (PHPV); 2 had retinal detachment...
July 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28752694/impact-of-age-on-scleral-buckling-surgery-for-rhegmatogenous-retinal-detachment
#10
Sung Who Park, Han Jo Kwon, Ik Soo Byon, Ji Eun Lee, Boo Sup Oum
PURPOSE: The purpose of this study is to investigate new prognostic factors in associated with primary anatomical failure after scleral buckling (SB) for uncomplicated rhegmatogenous retinal detachment (RRD). METHODS: The medical records of patients with uncomplicated RRD treated with SB were retrospectively reviewed. Eyes with known prognostic factors for RRD, such as fovea-on, proliferative vitreoretinopathy, pseudophakia, aphakia, multiple breaks, or media opacity, were excluded...
August 2017: Korean Journal of Ophthalmology: KJO
https://www.readbyqxmd.com/read/28732590/cost-utility-of-evaluation-for-posterior-vitreous-detachment-and-prophylaxis-of-retinal-detachment
#11
Nicolas A Yannuzzi, Jonathan S Chang, Gary C Brown, William E Smiddy
PURPOSE: To evaluate the costs and cost-utility of examination for posterior vitreous detachment (PVD) and treatment of associated pathology, and of managing various other peripheral retinal disorders to prevent retinal detachment (RD). DESIGN: A decision analysis model of cost-utility. PARTICIPANTS: There were no participants. METHODS: Published retrospective data on the natural course of PVD, retinal tears, and lattice degeneration were used to quantitate the visual benefits of examination and treatment...
July 18, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28727887/yag-laser-vitreolysis-vs-sham-yag-vitreolysis-for-symptomatic-vitreous-floaters-a-randomized-clinical-trial
#12
Chirag P Shah, Jeffrey S Heier
Importance: Vitreous floaters are common and can worsen visual quality. YAG vitreolysis is an untested treatment for floaters. Objective: To evaluate YAG laser vitreolysis vs sham vitreolysis for symptomatic Weiss ring floaters from posterior vitreous detachment. Design, Setting, and Participants: This single-center, masked, sham-controlled randomized clinical trial was performed from March 25, 2015, to August 3, 2016, in 52 eyes of 52 patients (36 cases and 16 controls) treated at a private ophthalmology practice...
September 1, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28710187/utility-of-microscope-integrated-optical-coherence-tomography-mioct-in-the-treatment-of-myopic-macular-hole-retinal-detachment
#13
Atul Kumar, Prateek Kakkar, Raghav Dinesh Ravani, Ashish Markan
Macular hole-associated retinal detachment in high myopia is described as a final stage in progression of myopic traction maculopathy (MTM).(1â€"3) Shimada et al(4) described the progressive stages of MTM from macular retinoschisis to serous retinal detachment in high myopia. Stage 4 MTM is characterised as disappearance of retinoschisis with progression to retinal detachment due to macular hole formation. It is hypothesised that vitreoschisis and abnormal vitreo-retinal interface create the premacular tangential traction...
July 14, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28708815/incidence-of-posterior-vitreous-detachment-after-femtosecond-lasik-compared-with-microkeratome-lasik
#14
Moataz Hamed Osman, Noha Mahmoud Khalil, Mohamed-Sameh El-Agha
PURPOSE: To compare the incidence of posterior vitreous detachment (PVD) after femtosecond and microkeratome laser in situ keratomileusis (LASIK). SETTING: Rowad Correction Centre, Cairo, Egypt (a private center affiliated to Cairo University). DESIGN: Prospective, nonrandomized comparative unmasked study. METHODS: The study was conducted at a single laser center. Eligible patients chose between femtosecond and microkeratome LASIK after appropriate counseling...
September 2017: Cornea
https://www.readbyqxmd.com/read/28690534/a-case-of-rhegmatogenous-retinal-detachment-at-late-stage-following-endogenous-bacterial-endophthalmitis
#15
Daisaku Kimura, Takaki Sato, Hiroyuki Suzuki, Ryohsuke Kohmoto, Masanori Fukumoto, Kensuke Tajiri, Takatoshi Kobayashi, Teruyo Kida, Tsunehiko Ikeda
PURPOSE: To report a case of rhegmatogenous retinal detachment in the late stage, despite the fact that it had previously been halted after intravitreal injection of an antimicrobial agent against endogenous bacterial endophthalmitis (EBE). CASE: This study involved a 62-year-old male who had previously been diagnosed with septicemia due to liver abscess and the detection of Klebsiella pneumoniae in a culture of his liver abscess, and who underwent ophthalmic examination after his conjunctival hyperemia had failed to improve...
May 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28665442/a-case-of-endophthalmitis-after-bilateral-medial-rectus-recession
#16
Sagar B Patel, Nikitha Reddy, Robert N Hogan, Jennifer H Cao
A 9-month-old male infant with a history of Down syndrome underwent bilateral medial rectus recession. Two weeks postoperatively, he developed leukocoria of the left eye with a white opacity posterior to the lens, numerous undulations, necrosis, and hemorrhages in the retrolental space. His contralateral eye had white retinal lesions nasally. Ultrasound examination of the left eye showed a funnel retinal detachment, loculated debris, and a small, central, hyperechoic area concerning for calcification. He underwent enucleation because retinoblastoma could not be definitively ruled out...
June 29, 2017: Journal of Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28650951/development-and-progression-of-a-lamellar-macular-hole-with-lamellar-hole-associated-epiretinal-proliferation
#17
Denise Compera, Matteo G Cereda, Ricarda G Schumann, Ferdinando Bottoni
PURPOSE: To describe evolution and progression of a lamellar macular hole (LMH) with "lamellar hole-associated epiretinal proliferation (LHEP)" using spectral-domain optical coherence tomography and fundus autofluorescence. METHODS: Observational case report. RESULTS: We report on a 63-year-old male patient demonstrating a complete history of LMH development with LHEP occurring during a follow-up period of 8 years. Presenting with a normal foveal contour and attached posterior vitreous at first visit, an LMH developed shortly after incomplete posterior vitreous detachment with vitreopapillary adhesion...
June 23, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28635048/prophylactic-chorioretinectomy-for-eye-injuries-with-high-proliferative-vitreoretinopathy-risk
#18
Ferenc Kuhn, Wolfgang Schrader
With its incidence exceeding 60%, proliferative vitreoretinopathy (PVR) remains the most important pathology responsible for loss of vision, even the eyeball, after certain types of severe trauma. In this article, we present results obtained using our novel surgical technique, prophylactic chorioretinectomy (PCR), to prevent the development of PVR. Data on severely injured eyes at high risk for PVR [rupture, posterior laceration, deep-impact intraocular foreign body (IOFB) trauma, perforating injury] were collected prospectively...
June 21, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28625955/experiment-of-vitreous-liquefaction-induced-by-c3f8
#19
Jing Wang, Qiuming Li
To investigate the effect and safety of vitreous liquefaction induced by C3F8 (an inert gas) injected into vitreous cavit of rabbit eyes. 24 rabbits (48 eyes) were randomly divided into four groups, named group A, group B, group C and group D, with 6 rabbits in each group. The right eye in each rabbit was taken as the experimental eye while the left as the control eye. The experimental eyes in group A were injected with 0.1mL disinfectant air; the experimental eyes in group B, group C and group D were all injected with C3F8 0...
January 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28620965/determination-of-retinal-surface-area
#20
Manbir Nagra, Bernard Gilmartin, Ngoc Jade Thai, Nicola S Logan
Previous attempts at determining retinal surface area and surface area of the whole eye have been based upon mathematical calculations derived from retinal photographs, schematic eyes and retinal biopsies of donor eyes. 3-dimensional (3-D) ocular magnetic resonance imaging (MRI) allows a more direct measurement, it can be used to image the eye in vivo, and there is no risk of tissue shrinkage. The primary purpose of this study is to compare, using T2-weighted 3D MRI, retinal surface areas for superior-temporal (ST), inferior-temporal (IT), superior-nasal (SN) and inferior-nasal (IN) retinal quadrants...
June 16, 2017: Journal of Anatomy
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