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https://www.readbyqxmd.com/read/28499050/swept-source-oct-visualization-of-macular-hole-closure-in-gas-filled-eyes
#1
Daniel Q Li, Netan Choudhry
BACKGROUND AND OBJECTIVE: To assess the utility of swept-source optical coherence tomography (SS-OCT) in visualizing macular hole (MH) closure through gas-filled eyes on postoperative day (POD) 1 using a dual scanning protocol. PATIENTS AND METHODS: We examined 30 consecutive patients with full-thickness MH who underwent standard vitrectomy with SF6 (25%) gas tamponade between July 2015 and April 2016. SS-OCT imaging was performed using horizontal raster and 16-line radial scans with manual delicate focusing to evaluate MH closure status...
May 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28494561/-observation-of-single-layered-inverted-internal-limiting-membrane-flap-technique-for-macular-hole-with-retinal-detachment-in-high-myopia
#2
C Z Xu, J H Wu, J W He, C Feng
Objective: To compare the outcome of pars plana vitrectomy (PPV) with a single-layered inverted internal limiting membrane (ILM) flap versus PPV with ILM peeling for the treatment of macular hole associated retinal detachment (MHRD) in high myopia. Methods: In a retrospective cohort study, PPV with 2 kinds of adjuvant surgical procedures were used in 35 moderately high myopia eyes with MHRD. These eyes were divided into 2 groups: group 1 (17 eyes) receiving PPV and ILM peeling and group 2 (18 eyes) receiving PPV with a single-layered inverted ILM flap...
May 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28492432/vascular-distortion-and-dragging-related-to-apparent-tissue-contraction-in-macular-telangiectasis-type-2
#3
Richard F Spaide, Rosa D Marco, Lawrence A Yannuzzi
PURPOSE: To examine the alterations in retinal vascular morphology over an extended follow-up in eyes with macular telangiectasis Type 2 (MacTel2). METHODS: Eyes with high-quality digital photographs were evaluated. The geometric distortion in baseline images required to emulate the follow-up images was determined and vectors were made that represented the direction and magnitude of changes, to create a warp field. Optical coherence tomography and optical coherence tomography angiography evaluation of the retina was performed...
May 10, 2017: Retina
https://www.readbyqxmd.com/read/28470646/vitrectomy-with-fovea-sparing-internal-limiting-membrane-peeling-for-myopic-foveoschisis
#4
C Seppey, T J Wolfensberger
Background Myopic foveoschisis is a rare form of a tractional maculopathy, which occurs in patients with elevated axial length. The contraction of the posterior hyaloid exerts tangential traction on the retinal surface with a subsequent continuous splitting of the retinal layers. Internal limiting membrane (ILM) peeling has been advocated in foveoschisis, but it has been associated with post-operative macular hole formation. We report on a modified surgical technique, which spares the fovea and may reduce the risk for macular hole formation...
April 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28461738/the-effect-of-vitreomacular-and-cataract-surgery-on-oxygen-saturation-in-retinal-vessels
#5
Yuki Nakano, Koichiro Manabe, Rie Osaka, Yukari Takasago, Aoi Ono, Mamoru Kobayashi, Tomoyoshi Fujita, Chieko Shiragami, Kazuyuki Hirooka, Akitaka Tsujikawa
PURPOSE: To evaluate the effects of vitreomacular and cataract surgery on retinal oximetry in vitreomacular disease. PATIENTS AND METHODS: Thirty-eight eyes with epiretinal membrane (ERM) and 15 with idiopathic macular hole (MH) underwent 25 gauge pars plana vitrectomy combined with cataract surgery and intraocular lens implantation. Retinal oximetry was performed using the Oxymap T1 before, 1 month, and 6 months after surgery. Oxymap T1 simultaneously captures monochrome images of the fundus at two different wavelengths of light...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28445869/silicone-oil-related-visual-loss
#6
Hamouda Hamdy Ghoraba, Adel Galal Zaky, Mohamed Amin Heikal, Emad Eldin Mohamed Elgemai, Haithem Mamoun Abd Al Fatah
BACKGROUND: Silicone oil (SO) is used as an intravitreal tamponade agent in vitreoretinal surgery for rhegmatogenous retinal detachment (RRD) complicated by proliferative vitreoretinopathy or with large, multiple retinal tears. Usually, SO is left in the eye for at least 3 months. Although its use can lead to well-known complications, intraocular SO is generally well tolerated. Some studies have reported unexpected central vision loss after SO use or removal. OBJECTIVE: To investigate and analyze the reason for visual loss after the use or removal of intraocular SO in patients who underwent vitrectomy surgeries for RRD...
April 27, 2017: Ophthalmologica. Journal International D'ophtalmologie
https://www.readbyqxmd.com/read/28437318/results-of-macular-hole-surgery-evaluation-based-on-the-international-vitreomacular-traction-study-classification
#7
Laura Liu, Ijilmurun Enkh-Amgalan, Nan-Kai Wang, Lan-Hsin Chuang, Yen-Po Chen, Yih-Shiou Hwang, Chee-Jen Chang, Kuan-Jen Chen, Wei-Chi Wu, Tun-Lu Chen, Chi-Chun Lai
PURPOSE: To evaluate the differences in anatomical and visual function changes after macular hole (MH) surgery using the International Vitreomacular Traction Study classification. METHODS: Patients who underwent vitrectomy and blood-assisted internal limiting membrane peeling because of MHs were enrolled in the present study. The patients were divided into three groups according to the sizes of their MHs (small: ≤250 μm, medium: >250 μm and ≤400 μm, and large: >400 μm)...
April 20, 2017: Retina
https://www.readbyqxmd.com/read/28432417/exploring-the-possibility-of-a-retrograde-embolism-pathway-from-the-facial-artery-to-the-ophthalmic-artery-system-in-vivo
#8
Hui Zheng, Lihong Qiu, Zonghui Liu, Yingjun Su, Xinyuan Pan, Sha Liu, Chenggang Yi
BACKGROUND: Blindness caused by soft tissue fillers is an extremely low-probability event, but it results in great concern because of its devastating consequences. Currently, the mechanism of an embolism is usually considered to be an accidental injection of fillers into the blood vessels of the face, such as a facial artery, and then retrograding into the ophthalmic artery system, which causes retinal ischemic necrosis. In addition, previous studies have shown that there are anastomoses between facial arteries and branches of the ophthalmic artery in cadavers...
April 21, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28432165/intravitreal-cysticercosis-with-full-thickness-macular-hole-management-outcome-and-intraoperative-optical-coherence-tomography-features
#9
Karthikeya R, Raghav Dinesh Ravani, Prateek Kakkar, Atul Kumar
Ocular cysticercosis is a serious condition with a potential for complete vision loss if left untreated. Intravitreal cysticercosis is the most common ocular form of cysticercosis and is associated with retinal detachment, retinal traction, subretinal scarring and vitritis. To the best of our knowledge, there is no report of the occurrence of a live intravitreal cysticercosis with a full thickness macular hole (FTMH) in the literature. We here report a case of live intravitreal cysticercosis with a FTMH along with its management and intraoperative optical coherence tomography features of the live cysticercus...
April 21, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28428970/changes-in-anterior-segment-parameters-following-pars-plana-vitrectomy-measured-by-ultrasound-biomicroscopy-ubm
#10
Zahra Ghomi, Fariba Ghassemi
Despite being a posterior segment ocular surgery, pars plana vitrectomy (PPV) may also affect anterior segment parameters. We aimed to investigate anterior segment alterations following PPV using ultrasound biomicroscopy (UBM) to visualize the structural anatomy of the eye. In this study, we enrolled phakic patients undergoing PPV (as the sole procedure). The anterior chamber depth, crystalline lens anterior-posterior (AP) diameter, anterior chamber angle, ciliary body dimensions, and integrity of the ciliary zonules and posterior capsule were assessed using UBM before and at least 3 months after PPV...
2017: Medical Hypothesis, Discovery and Innovation in Ophthalmology
https://www.readbyqxmd.com/read/28413410/eccentric-macular-hole-after-pars-plana-vitrectomy-for-idiopathic-macular-hole-a-case-report
#11
Irini Chatziralli, George Theodossiadis, Maria Douvali, Alexandros A Rouvas, Panagiotis Theodossiadis
INTRODUCTION: Postoperative eccentric macular hole (MH) formation is an uncommon complication after pars plana vitrectomy (PPV) with internal limiting membrane (ILM) peeling for epiretinal membrane or MH treatment. Herein, we present a case of eccentric MH formation after PPV with ILM peeling for MH. CASE DESCRIPTION: A 72-year-old female patient underwent 23-gauge PPV with ILM peeling for idiopathic MH in her right eye. The visual acuity was 6/24 in the right eye...
January 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28409023/a-new-sutureless-illuminated-macular-buckle-designed-for-myopic-macular-hole-retinal-detachment
#12
Ahmed M Bedda, Ahmed M Abdel Hadi, Mohamed Lolah, Muhammad S Abd Al Shafy
Purpose. To report the anatomic and visual results of a new sutureless illuminated macular buckle designed for patients with macular hole retinal detachment related to high myopia (MMHRD). Design. Prospective nonrandomized comparative interventional trial. Methods. Twenty myopic eyes of 20 patients (mean age, 51.4 years; range, 35-65 years) presenting with MMHRD with a posterior staphyloma, in whom the new buckle was used, were evaluated. The buckle used was assembled from a 5 mm wide sponge and a 7 mm wide silicone tire; it was fixed utilizing the sterile topical adhesive Histoacryl Blue (B Braun, TS1050044FP) which polymerizes in seconds upon being exposed to water-containing substances...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28389702/cooperative-robot-assistant-for-vitreoretinal-microsurgery-development-of-the-rvrms-and-feasibility-studies-in-an-animal-model
#13
Yi-Qi Chen, Ji-Wei Tao, Ling-Ya Su, Liang Li, Shi-Xin Zhao, Yang Yang, Li-Jun Shen
PURPOSE: The purpose of the study was to describe the development of a robotic aided surgical system named RVRMS (robotic vitreous retinal microsurgery system) and to evaluate the capability for using it to perform vitreoretinal surgery. METHODS: The RVRMS was designed and built to include the key components of two independent arms. End-effectors of each arm fix various surgical instruments and perform intraocular manipulation. To evaluate properly the RVRMS, robot-assisted 23-gauge surgical tasks including endolaser for retinal photocoagulation, pars plana vitrectomy (PPV), retinal foreign body removal and retinal vascular cannulation were performed in two different sizes of an animal model...
April 8, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28386639/-ophthalmic-diaphanoscopy
#14
F H J Koch, S Deuchler, P Singh, M Heßling
Diaphanoscopy is an almost 150-year-old diagnostic procedure based on the transillumination of the wall of the eyeball. One of the most important fields of application is the detection of tumors, which can be distinguished from the rest of the tissue by their reduced light transmission. Other fields of application include the diagnosis of retinal tears and holes, the detection of foreign bodies in the vitreous body and the control of coagulative measures in the ciliary body. In comparison to other techniques, diaphanoscopy requires only little effort and is very gentle on patients...
April 6, 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28376042/spectral-domain-optical-coherence-tomography-findings-in-macula-involving-cytomegalovirus-retinitis
#15
Mrinali P Gupta, Sarju Patel, Anton Orlin, Elizabeth Marlow, Ru-Ik Chee, Jennifer Nadelmann, R V Paul Chan, Donald J DʼAmico, Szilard Kiss
PURPOSE: To evaluate the microstructural features of cytomegalovirus (CMV) retinitis by spectral domain optical coherence tomography (OCT). METHODS: Subjects were patients with macula-involving CMV retinitis with OCT imaging. The leading edge of retinitis in the macula was identified based on fundus imaging, and OCT findings were longitudinally evaluated in three areas: within the area of active retinitis, at the leading edge of retinitis, and just beyond the leading edge of retinitis...
April 3, 2017: Retina
https://www.readbyqxmd.com/read/28376040/spectral-domain-optical-coherence-tomography-features-in-different-stages-of-best-vitelliform-macular-dystrophy
#16
Maurizio Battaglia Parodi, Pierluigi Iacono, Francesco Romano, Francesco Bandello
PURPOSE: To provide a systematic classification of findings regarding the different stages of vitelliform macular dystrophy on spectral domain optical coherence tomography (SD-OCT). METHODS: Ninety-four eyes of 47 patients were recruited in a prospective cross-sectional study. All patients underwent a complete ophthalmologic examination, including best-corrected visual acuity using Early Treatment Diabetic Retinopathy Study (ETDRS) charts, biomicroscopy, and SD-OCT...
April 3, 2017: Retina
https://www.readbyqxmd.com/read/28362390/blue-hazard-free-candlelight-oled
#17
Jwo-Huei Jou, Meenu Singh, Yu-Ting Su, Shih-Hao Liu, Zhe-Kai He
A candlelight-style organic light emitting diode (OLED) is a human-friendly type of lighting because it is blue-hazard-free and has a low correlated color temperature (CCT) illumination. The low CCT lighting is deprived of high-energy blue radiation, and it can be used for a longer duration before causing retinal damage. This work presents the comprehensive protocols for the fabrication of blue-hazard-free candlelight OLEDs. The emission spectrum of the OLED was characterized by the maximum exposure time limit of the retina and the melatonin suppression sensitivity...
March 19, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28330041/retinal-tractography-influence-of-diffusion-acquisition-ocular-laterality-and-ocular-dominance-in-healthy-subjects
#18
Clément Jean, Arnaud Attyé, Sylvie Grand, Augustin Lecler, Christophe Chiquet, Florent Aptel, Laurent Lamalle, Alexandre Krainik
PURPOSE: Exploration of the human retina has never been described with MRI tractography, supposedly because of ocular movement-related artifacts and imaging distortions with EPI diffusion acquisition. In this work, we used track-weighting imaging to assess retinal fascicles. Diffusion acquisition parameters influence was studied and the relationship between variability and ocular laterality and ocular dominance was explored. MATERIALS AND METHODS: Twenty healthy subjects underwent MRI, with retinal tractography calculated with the constrained spherical deconvolution model...
March 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28301411/retinal-phenotype-in-a-case-of-lchad-tfp-deficiency-with-late-stage-diagnosis
#19
Jacob A Knowles, Ioannis S Dimopoulos, Ian M MacDonald
PURPOSE: To report the retinal phenotype of a rare case of long-chain 3-hydroxyacyl-CoA dehydrogenase (LCHAD)/trifunctional protein (TFP) deficiency diagnosed in his late 40s with ocular findings of diffuse chorioretinal atrophy and bilateral retinoschisis. METHODS: An acylcarnitine profile assay revealed LCHAD/TFP deficiency in a 45-year-old man with a history of high myopia, bilateral decreased vision, episodic rhabdomyolysis, and peripheral neuropathy. Ocular findings were evaluated with spectral domain optical coherence tomography (Spectralis OCT; Heidelberg Engineering, Heidelberg, Germany) and color fundus photography...
March 15, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28296806/new-observations-regarding-the-retinopathy-of-genetically-confirmed-kearns-sayre-syndrome
#20
Igor Kozak, Darren T Oystreck, Khaled K Abu-Amero, Sawsan R Nowilaty, Hisham Alkhalidi, Sahar M Elkhamary, Sarar Mohamed, Muddathir H A Hamad, Mustafa A Salih, Emma L Blakely, Robert W Taylor, Thomas M Bosley
PURPOSE: To report novel retinal findings in Kearns-Sayre syndrome and correlate degree of retinopathy with other clinical findings. METHODS: Observational case series of patients from Saudi Arabia with retinal and neuroophthalmologic examinations, medical chart review, and mitochondrial genetic evaluation. RESULTS: The three unrelated patients had progressive external ophthalmoplegia and pigmentary retinopathy bilaterally. Muscle biopsy in two of the cases revealed mitochondrial myopathy...
December 19, 2016: Retinal Cases & Brief Reports
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