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Vitreoretinal surgery

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https://www.readbyqxmd.com/read/28650952/novel-patient-positioning-apparatus-for-retinal-surgery-in-a-case-of-severe-kyphosis
#1
Douglas S M Iaboni, Mark E Seamone, Mary S Stairs, Daniel M OʼBrien, M Sheldon Bisson, R Rishi Gupta
PURPOSE: To describe a novel patient positioning apparatus for intraocular surgery capable of accommodating patients with thoracic kyphosis. METHODS: Case report. RESULTS: A 60-year-old man presented with a macula-off retinal detachment and severe ankylosing spondylitis. The patient was scheduled for combined pars plana vitrectomy and scleral buckle. Because of the patient's severe kyphosis, a custom-designed positioning apparatus was built...
June 23, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28630788/evaluation-of-ganglion-cell-inner-plexiform-layer-thickness-after-vitreoretinal-surgery-with-internal-limiting-membrane-peeling-in-cases-with-idiopathic-macular-hole
#2
Sibel Demirel, Ahmed Abdullayev, Özge Yanık, Figen Batıoğlu, Emin Özmert
OBJECTIVES: To evaluate macular retinal ganglion cell-inner plexiform layer (GCIPL) thickness after vitrectomy with internal limiting membrane (ILM) peeling for idiopathic macular holes using spectral domain optical coherence tomography (SD-OCT). MATERIALS AND METHODS: Eighteen eyes of 18 patients with unilateral idiopathic macular hole who underwent vitrectomy with ILM peeling were retrospectively analyzed. Healthy fellow eyes of the patients and 18 eyes of 18 age-matched healthy individuals constituted the control group...
June 2017: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/28616869/a-perfluorobutylpentane-f4h5-based-solution-for-the-removal-of-residual-emulsified-silicone-oil
#3
Yau Kei Chan, Ho Ching Cheng, Jing Wu, Yuk Heng Matthew Tang, San To Chan, David Wong, Ho Cheung Shum
PURPOSE: The emulsification of silicone oil (SO) is associated with many complications. In this study, we investigate a new SO solvent, perfluorobutylpentane (F4H5) with 1% by volume of perfluorinated polyethers-polyethylene glycol-perfluorinated polyethers (PFPE-PEG-PFPE) triblock copolymer, for removing emulsified droplets. METHODS: An in vitro 3D printed model eye chamber was used to evaluate the efficiency of the three test liquids in removing SO droplets, namely saline, F4H5 and F4H5 with surfactant PFPE-PEG-PFPE...
June 14, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28613223/novel-use-of-sterilized-disposable-surgical-lenses-for-posterior-segment-examination-an-opportunity-for-equitable-resource-distribution
#4
Benjamin J Thomas, Aristomenis Thanos, Yoshihiro Yonekawa, Bozho Todorich
PURPOSE: To report a novel technique for repurposing disposable wide-angle lenses used in vitreoretinal surgery for noncontact posterior segment examination. METHODS: Clinical technique report with imaging. RESULTS: The disposable lens for the noncontact BIOM viewing system manufactured by OCULUS Optikgerate GmbH (Wetzler, Germany) is a 100-diopter converging lens with wide-angle viewing ability. When appropriately processed after initial use, this lens is able to safely provide clinically useful viewing of the posterior segment when combined with a slit-lamp microscope, at a fraction of the cost of commercially available lenses...
April 24, 2017: Retina
https://www.readbyqxmd.com/read/28604979/femtosecond-laser-assisted-cataract-in-vitreoretinal-surgery
#5
Stanislao Rizzo, Daniela Bacherini, Francesco Faraldi, Marco Pellegrini, Cesare Mariotti
PURPOSE: To assess the safety and surgical results of femtosecond laser-assisted phacovitrectomy. METHODS: Fifteen patients over 50 years of age with coexisting vitreoretinal pathologies and cataract underwent combined femtosecond laser-assisted cataract extraction and sutureless 25-G and 27-G vitreoretinal surgery. RESULTS: The indication for surgery was macular hole in 6 patients, epiretinal membrane in 6, vitreous hemorrhage in 2, and retinal detachment in 1...
June 2, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28599336/-intraoperative-optical-coherence-tomography-in-vitreoretinal-surgery-clinical-experiences-and-future-developments
#6
Mathias M Maier, Ali Nasseri, Carsten Framme, Sabrina Bohnacker, Matthias D Becker, Dominik Heinrich, Hansjürgen Agostini, Nikolaus Feucht, Chris P Lohmann, Lars Olof Hattenbach
Purpose High resolution optical coherence tomography (OCT) enables better visualization of ophthalmic microstructures than conventional imaging. When using an ophthalmic microscope, integrated optical coherence tomography (iOCT) high resolution real time visualization is possible. Methods We report on the first 110 patients operated on using a microscope integrated OCT (iOCT) during surgical procedures for the treatment of various posterior segment pathologies. Results Microstructural changes that appeared during surgery were depicted precisely by iOCT, and the morphology visualized before and after each surgical step was used to help deciding how to adapt the surgical flow...
June 9, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28590962/longitudinal-changes-in-thicknesses-of-the-macula-ganglion-cell-inner-plexiform-layer-and-retinal-nerve-fiber-layer-after-vitrectomy-a-12-month-observational-study
#7
Hyung-Bin Lim, Min-Woo Lee, Baek-Soo Kwak, Young-Joon Jo, Jung-Yeul Kim
PURPOSE: To analyze longitudinal changes in the thicknesses of the macula, ganglion cell-inner plexiform layer (GC-IPL), and peripapillary retinal nerve fiber layer (RNFL) after vitrectomy. METHODS: Thirty-eight patients diagnosed with intraocular lens (IOL) dislocation without evidence of other vitreoretinal diseases were included. They underwent conventional vitrectomy and IOL transscleral fixation, with a follow-up of 12 months. Using spectral domain optical coherence tomography, the thicknesses of the macula, GC-IPL, and peripapillary RNFL in the vitrectomized and fellow control eyes were measured...
January 23, 2017: Retina
https://www.readbyqxmd.com/read/28590319/surgical-outcomes-of-27-gauge-vitrectomy-for-a-consecutive-series-of-163-eyes-with-various-vitreous-diseases
#8
Kazuhito Yoneda, Keisuke Morikawa, Yusuke Oshima, Shigeru Kinoshita, Chie Sotozono
PURPOSE: To evaluate the safety and efficacy of 27-gauge vitrectomy for various vitreoretinal disorders. METHODS: In this retrospective comparative study, 163 consecutive eyes with various diseases that underwent 27-gauge pars plana vitrectomy with or without ultraspeed transformer by a single surgeon from June 2012 through December 2014 were analyzed in regard to best-corrected visual acuity, intraocular pressure, intraoperative and postoperative complications, and surgery time...
January 4, 2017: Retina
https://www.readbyqxmd.com/read/28589037/review-of-small-gauge-vitrectomy-progress-and-innovations
#9
REVIEW
Shaheeda Mohamed, Carl Claes, Chi Wai Tsang
Purpose. To summarise the surgical advances and evolution of small gauge vitrectomy and discuss its principles and application in modern vitreoretinal surgery. The advent of microincisional vitrectomy systems (MIVS) has created a paradigm shift away from twenty-gauge vitrectomy systems, which have been the gold standard in the surgical management of vitreoretinal diseases for over thirty years. Advances in biomedical engineering and surgical techniques have overcome the technical hurdles of shifting to smaller gauge instrumentation and sutureless surgery, improving surgical capabilities and expanding the indications for MIVS...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28576207/effect-of-air-and-sulfur-hexafluoride-sf6-tamponade-on-visual-acuity-after-epiretinal-membrane-surgery-a-pilot-study
#10
Guillaume Chabot, Serge Bourgault, Benoit Cinq-Mars, Éric Tourville, Mathieu Caissie
OBJECTIVE: The aim of this study was to compare visual acuity improvement after epiretinal membrane (ERM) surgery using air and sulfur hexafluoride (SF6) tamponade. Secondary objectives were to evaluate Visual Function Questionnaire (VFQ) scores and central retinal thickness (CRT) changes. DESIGN: This was a prospective, randomized study. PARTICIPANTS: Thirty-two patients were prospectively randomized, 19 to the air group and 13 to the SF6 group...
June 2017: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/28571005/importance-of-light-filters-in-modern-vitreoretinal-surgery-an-update-of-the-literature
#11
Michele Coppola, Maria Vittoria Cicinelli, Alessandro Rabiolo, Giuseppe Querques, Francesco Bandello
PURPOSE: Direct endobulbar illumination during vitreoretinal surgery causes light-induced retinal damage known as phototoxicity. Spectral filters have been proposed to eliminate hazardous wavelengths from the emission spectrum before entering the eye. The purpose of our paper is to review advances in vitreoretinal surgery, focusing on intraoperative light filters. METHODS: A PubMed and Medline database search was carried out using the terms "spectral filters" associated with "vitreoretinal surgery," "phototoxicity," and "vitrectomy...
June 2, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28564702/associations-between-%C3%AE-peripapillary-atrophy-and-reticular-pseudodrusen-in-early-age-related-macular-degeneration
#12
Aakriti Garg, Dana M Blumberg, Lama A Al-Aswad, Maris Oll, Suzanne Yzer, Max Forbes, Rando L Allikmets, Srilaxmi Bearelly
Purpose: Choroidal thinning has been associated with reticular pseudodrusen (RPD) and β-peripapillary atrophy (β-PPA), which have been linked to normal-tension glaucoma (NTG). This analysis sought to determine whether RPD are independently associated with β-PPA in early AMD patients. Secondary outcomes included the association of RPD and preexisting diagnosis of glaucoma, cup-to-disc ratio (CDR), subfoveal choroidal thickness (SFCT), and IOP. Methods: This prospective cross-sectional study examined 78 age- and sex-matched early AMD patients: 43 RPD patients (63 eyes) and 35 non-RPD patients (64 eyes)...
May 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28558009/association-between-aqueous-humor-and-vitreous-fluid-levels-of-th17-cell-related-cytokines-in-patients-with-proliferative-diabetic-retinopathy
#13
Masaru Takeuchi, Tomohito Sato, Yutaka Sakurai, Manzo Taguchi, Kozo Harimoto, Yoko Karasawa, Masataka Ito
Inflammation is known to be involved in the progression of diabetic retinopathy. We have recently reported that vitreous levels of IL-4, IL-17A, IL-22, IL-31, and TNFα are higher than the respective serum levels in proliferative diabetic retinopathy (PDR) patients, and that vitreous levels of these cytokines are higher in PDR than in other non-inflammatory vitreoretinal diseases or uveitis associated with sarcoidosis. In the present study, we investigated inflammatory cytokines including Th17 cell-related cytokines in aqueous humor samples obtained from eyes with PDR, and analyzed the association between the aqueous humor and vitreous fluid levels of individual cytokines...
2017: PloS One
https://www.readbyqxmd.com/read/28553548/potential-utility-of-a-4k-consumer-camera-for-surgical-education-in-ophthalmology
#14
Tsunetomo Ichihashi, Yutaka Hirabayashi, Miyuki Nagahara
Purpose. We evaluated the potential utility of a cost-effective 4K consumer video system for surgical education in ophthalmology. Setting. Tokai University Hachioji Hospital, Tokyo, Japan. Design. Experimental study. Methods. The eyes that underwent cataract surgery, glaucoma surgery, vitreoretinal surgery, or oculoplastic surgery between February 2016 and April 2016 were recorded with 17.2 million pixels using a high-definition digital video camera (LUMIX DMC-GH4, Panasonic, Japan) and with 0.41 million pixels using a conventional analog video camera (MKC-501, Ikegami, Japan)...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28541957/the-cutting-edge-of-retinopathy-of-prematurity-care-expanding-the-boundaries-of-diagnosis-and-treatment
#15
Yoshihiro Yonekawa, Benjamin J Thomas, Aristomenis Thanos, Bozho Todorich, Kimberly A Drenser, Michael T Trese, Antonio Capone
PURPOSE: To discuss the latest advances and controversies in the diagnosis and care of infants with retinopathy of prematurity (ROP). METHODS: Literature review. RESULTS: Retinopathy of prematurity remains a major global issue. Industrialized nations now treat profoundly premature infants with posterior and aggressive disease, and middle-income nations are experiencing ROP epidemics. Remote digital imaging may address the decreasing ratio of ROP providers to premature infants, in addition to improving patient care...
May 24, 2017: Retina
https://www.readbyqxmd.com/read/28540014/toward-the-art-of-robotic-assisted-vitreoretinal-surgery
#16
Amir Molaei, Ebrahim Abedloo, Marc D de Smet, Sare Safi, Milad Khorshidifar, Hamid Ahmadieh, Mohammad Azam Khosravi, Narsis Daftarian
New technological progress in robotics has brought many beneficial clinical applications. Currently, computer integrated robotic surgery has gained clinical acceptance for several surgical procedures. Robotically assisted eye surgery is envisaged as a promising solution to overcome the shortcomings inherent to conventional surgical procedures as in vitreoretinal surgeries. Robotics by its high precision and fine mechanical control can improve dexterity, cancel tremor, and allow highly precise remote surgical capability, delicate vitreoretinal manipulation capabilities...
April 2017: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/28534232/spontaneous-dislocation-of-the-posterior-chamber-intraocular-lens
#17
Azusa Fujikawa, Yasser Helmy Mohamed, Hirofumi Kinoshita, Eiko Tsuiki, Takashi Kitaoka
AIM: To evaluate the possible risk factors for posterior chamber intraocular lens dislocation either in-the-bag (ITB) dislocation or out-of-the-bag (OOTB) dislocation. METHODS: All subjects who sustained late intraocular lens dislocation from January 2011 until May 2014 and presented to the Nagasaki University Hospital were included in the study. This study is a retrospective evaluation of all cases of posterior chamber intraocular lens dislocation in this defined period...
May 22, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28492439/retrobulbar-block-in-pediatric-vitreoretinal-surgery-eliminates-the-need-for-intraoperative-fentanyl-and-postoperative-analgesia-a-randomized-controlled-study
#18
Lan Yao, Hong Zhao, Bailin Jiang, Yi Feng
BACKGROUND AND OBJECTIVES: Pediatric ophthalmologic surgery is traditionally accomplished by general anesthesia with opioids, but respiratory depression remains a major concern. Our study compared the efficacy of retrobulbar block with systemic fentanyl on pain, hemodynamic, and stress response in pediatric vitreoretinal surgery. METHODS: A prospective double-blind, randomized controlled study was performed comparing retrobulbar block with intravenously administered fentanyl in 28 children aged 1 to 6 years undergoing vitreoretinal surgery...
July 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28465834/preoperative-inflammatory-control-and-surgical-outcome-of-vitrectomy-in-intermediate-uveitis
#19
Yong Un Shin, Joo Young Shin, Dae Joong Ma, Heeyoon Cho, Hyeong Gon Yu
Purpose. To demonstrate the long-term effectiveness of vitrectomy for intermediate uveitis (IU) and to determine whether complete control of inflammation before vitrectomy is necessary. Methods. This retrospective study included 66 eyes of 66 patients with IU who underwent vitrectomy for vitreoretinal complications. Eyes were followed for at least 12 months after vitrectomy. The degree of inflammation control and visual acuity were compared before and after vitrectomy. These parameters were compared according to the presence of complete inflammation control before surgery...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28451463/macular-edema-is-a-rare-finding-in-untreated-vitreoretinal-lymphoma-small-case-series-and-review-of-the-literature
#20
REVIEW
Elisa Carreras, Diva R Salomão, Jeroni Nadal, Sejal R Amin, Harish Raja, Thomas J Grube, Ryan L Geraets, Patrick B Johnston, Brian P O'Neill, Jose S Pulido
BACKGROUND: To determine the occurrence of macular edema (ME) in vitreoretinal lymphoma (VRL). METHODS: Retrospective analysis of 17 patients (31 eyes) with VRL. A review of the literature was done as well. RESULTS: Nine patients (15 eyes) had fluorescein angiography and/or optical coherence tomography at presentation. In the ME group (six eyes of four patients), three patients (five eyes) had prior chemotherapy and radiation. Excluding eyes with radiation retinopathy (three eyes), rate of ME was 25% (3/12)...
2017: International Journal of Retina and Vitreous
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