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https://www.readbyqxmd.com/read/28339297/long-term-effect-of-panretinal-photocoagulation-on-spectral-domain-optical-coherence-tomography-measurements-in-diabetic-retinopathy
#1
Haeng-Jin Lee, Tae-Seen Kang, Baek-Soo Kwak, Young-Joon Jo, Jung-Yeul Kim
PURPOSE: To evaluate the effects of panretinal photocoagulation on spectral domain optical coherence tomography measurements in diabetic retinopathy by comparing the thicknesses of the central macula, retinal nerve fiber layer, and ganglion cell layer, we used a Cirrus HD OCT® (Carl Zeiss Meditec, Dublin, CA, USA) in normal and diabetic retinopathy cohorts. METHODS: We analyzed patients who visited our retinal clinic between May 2013 and July 2014. The patients were classified into four groups: normal (Group A), diabetes without diabetic retinopathy (Group B), severe nonproliferative or proliferative diabetic retinopathy (Group C), and at least 3 years after panretinal photocoagulation treatment (Group D)...
March 24, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28334846/dapl1-a-susceptibility-locus-for-age-related-macular-degeneration-acts-as-a-novel-suppressor-of-cell-proliferation-in-the-retinal-pigment-epithelium
#2
Xiaoyin Ma, Huirong Li, Yipin Wang, Jing Wang, Qinxiang Zheng, Jiajia Hua, Juan Yang, Li Pan, Fan Lu, Jia Qu, Ling Hou
The retinal pigment epithelium (RPE) forms a monolayer at the back of the vertebrate eye and is fundamental to retinal function and homoeostasis. During early development, RPE cells undergo rapid proliferation, but in the adult, they remain normally nonproliferative throughout life. Nevertheless, under pathological conditions such as in proliferative vitreoretinopathy or after retinal ablation, mature RPE cells can re-enter the cell cycle and form nodules or multiple cell layers. Here we show that Dapl1, whose human homolog represents a susceptibility locus for age-related macular degeneration (AMD), is highly up-regulated in quiescent but not proliferating RPE cells and that experimental overexpression of DAPL1 in proliferating RPE cells inhibits their proliferation...
February 22, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28334720/intravitreal-dexamethasone-implant-versus-intravitreal-ranibizumab-for-the-treatment-of-macular-edema-secondary-to-retinal-vein-occlusion-in-a-chinese-population
#3
Xiaoya Gu, Xiaobing Yu, Shuang Song, Hong Dai
BACKGROUND: The aim of this work was to compare the efficacy of intravitreal dexamethasone implant (Ozurdex) and intravitreal ranibizumab (Lucentis) in the treatment of macular edema (ME) caused by retinal vein occlusion (RVO). METHODS: Thirty-two ME cases treated with Ozurdex and 32 ME cases treated with ranibizumab were enrolled, with 26 central (C)RVO and 6 branch (B)RVO subjects in each group. We compared the results of best-corrected visual acuity (BCVA), central retinal thickness, number of injections, and intraocular pressure (IOP) at 1, 2, 3, and 6 months after injection...
March 24, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28334374/chronic-systemic-interleukin-18-does-not-promote-macular-degeneration-or-choroidal-neovascularization
#4
Scott W Canna, Guangpu Shi, Igal Gery, H Nida Sen
No abstract text is available yet for this article.
March 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28333890/the-association-between-clinical-features-seen-on-fundus-photographs-and-glaucomatous-damage-detected-on-visual-fields-and-optical-coherence-tomography-scans
#5
Paula A Alhadeff, Carlos G De Moraes, Monica Chen, Ali S Raza, Robert Ritch, Donald C Hood
PURPOSE: To classify the appearance of the optic disc seen on fundus photographs of healthy subjects and patients with or suspected glaucoma whose diagnosis was based upon visual fields (VFs) and spectral-domain optical coherence tomography (sdOCT) results. PATIENTS AND METHODS: One eye of 100 patients with or suspected glaucoma and 62 healthy subjects were prospectively tested with 24-2 and 10-2 VF and macular and disc sdOCT cube scans. All eyes with or suspected glaucoma had a 24-2 mean deviation better than -6...
March 22, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28333881/outer-retinal-layer-thickness-as-good-visual-predictor-in-patients-with-diabetic-macular-edema
#6
Tamer F Eliwa, Mahdi A Hussein, Mohamed A Zaki, Osama A Raslan
PURPOSE: To evaluate the relationship between outer retinal layer (ORL) thickness in diabetic macular edema to visual acuity (VA). METHODS: Ninety-five eyes were included in this prospective nonrandomized case-control study. They divided into 30 cases of healthy normal subjects and 65 cases of nonproliferative diabetic retinopathy with diabetic macular edema. Complete ophthalmic examination and spectral domain-optical coherence tomography were done for all cases and analyzed to measure central foveal point thickness (CFT), ORL thickness at fovea, and subfoveal choroidal thickness...
March 22, 2017: Retina
https://www.readbyqxmd.com/read/28333880/twenty-five-gauge-pars-plana-vitrectomy-in-complex-retinal-detachments-associated-with-giant-retinal-tear
#7
Vinod Kumar, Devesh Kumawat, Anju Bhari, Parijat Chandra
PURPOSE: To study the structural and functional outcomes of 25-gauge pars plana vitrectomy in giant retinal tear-associated retinal detachments. METHODS: Seventeen eyes of 17 patients with giant retinal tear, who underwent 25-gauge pars plana vitrectomy over a period of 15 months at a tertiary eye care center by a single surgeon, were recruited in this retrospective interventional study. RESULTS: Giant retinal tears were mostly traumatic (35...
March 22, 2017: Retina
https://www.readbyqxmd.com/read/28333877/predicting-visual-outcomes-of-second-eye-vitrectomy-for-proliferative-diabetic-retinopathy
#8
Marko Sulak, Mojca Urbancic, Mojca Globocnik Petrovic
PURPOSE: To investigate predictive factors for visual outcome in the second operated eye of patients undergoing bilateral vitrectomy for proliferative diabetic retinopathy. METHODS: Clinical records of 55 patients undergoing bilateral vitrectomy for proliferative diabetic retinopathy at the University Eye Hospital Ljubljana between January 2009 and December 2014 were examined retrospectively. Statistical analysis was performed to identify variables associated with good visual outcomes...
March 22, 2017: Retina
https://www.readbyqxmd.com/read/28333857/successful-closure-of-full-thickness-macular-holes-secondary-to-macular-vitelliform-lesions
#9
Justin C Galvin, Brian E Chua, Adrian T Fung
PURPOSE: To describe the first reported cases of full-thickness macular holes secondary to vitelliform lesions that were successfully closed with vitrectomy surgery and gas tamponade. METHODS: Two female patients developed visual loss secondary to bilateral vitelliform lesions and associated full-thickness macular holes. The patients underwent 25-gauge pars plana vitrectomy, internal limiting membrane peeling, and 26% sulfur hexafluoride gas, followed by 3 days of face-down positioning...
March 22, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28333856/extreme-diurnal-variation-of-central-macular-thickness-in-diabetic-macular-edema
#10
Kumar Sambhav, Sandeep Grover, Kakarla V Chalam
PURPOSE: Spectral domain optical coherence tomography is an established modality to quantify diabetic macular edema (DME). Change in central subfield thickness exceeding 3% to 6% in DME is likely to be significant. In this case of DME, we describe an extreme bilateral variation in central macular thickness on spectral domain optical coherence tomography over two consecutive days without any treatment. METHODS: The patient with DME and nonproliferative diabetic retinopathy underwent visual acuity testing, slit-lamp biomicroscopy, and dilated fundus examination...
March 22, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28333783/dome-shaped-macula-in-myopic-eyes-twelve-month-follow-up
#11
Daniel Lorenzo, Luis Arias, Netan Choudhry, Eduard Millan, Ignacio Flores, Marcos J Rubio, Estefanía Cobos, Pere García-Bru, Alejandro Filloy, Josep M Caminal
PURPOSE: To study the long-term clinical course of dome-shaped macula in myopic eyes and to evaluate treatment efficacy for subretinal fluid (SRF) as a related complication. METHODS: A retrospective, single-center consecutive case series study was conducted. The authors analyzed myopic eyes with dome-shaped macula in patients who presented for evaluation of decreased vision. Dome-shaped macula was defined as a convexity of the retina-choroidal macular complex seen on spectral domain optical coherence tomography images...
April 2017: Retina
https://www.readbyqxmd.com/read/28333716/internal-aspiration-under-perfluorocarbon-liquid-for-the-management-of-large-macular-holes
#12
Oded Ohana, Adiel Barak, Shulamit Schwartz
PURPOSE: To report the outcomes of pars plana vitrectomy with internal aspiration under perfluorocarbon liquid for large macular holes (MH). METHODS: Retrospective consecutive case series of patients with large (>400 µm) MH. All treated were with pars plana vitrectomy, internal limiting membrane peeling, internal fluid aspiration under perfluorocarbon liquid, and gas/oil tamponade. Outcomes included closure rate and visual acuity at 6 months. RESULTS: Twenty eyes of 20 patients were included...
January 11, 2017: Retina
https://www.readbyqxmd.com/read/28333647/automatic-choroidal-layer-segmentation-using-markov-random-field-and-level-set-method
#13
Chuang Wang, Yongmin Li, Ya Xing Wang
The choroid is an important vascular layer that supplies oxygen and nourishment to the retina. The changes in thickness of the choroid have been hypothesised to relate to a number of retinal diseases in the pathophysiology. In this work, an automatic method is proposed for segmenting the choroidal layer from macular images by using the level set framework. The 3D nonlinear anisotropic diffusion filter is used to remove all the OCT imaging artifacts including the speckle noise and to enhance the contrast. The distance regularisation and edge constraint terms are embedded into the level set method to avoid the irregular and small regions and keep information about the boundary between the choroid and sclera...
March 20, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28333572/new-insights-on-complement-inhibitor-cd59-in-mouse-laser-induced-choroidal-neovascularization-mislocalization-after-injury-and-targeted-delivery-for-protein-replacement
#14
Gloriane Schnabolk, Mee Keong Beon, Stephen Tomlinson, Bärbel Rohrer
PURPOSE: The membrane attack complex (MAC) in choriocapillaris (CC) and retinal pigment epithelium (RPE) increase with age and disease (age-related macular degeneration). MAC assembly can be inhibited by CD59, a membrane-bound regulator. Here we further investigated the role of CD59 in murine choroidal neovascularization (CNV), a model involving both CC and RPE, and tested whether CR2-CD59, a soluble targeted form of CD59, provides protection. METHODS: Laser-induced CNV was generated in wild type and CD59a-deficient mice (CD59(-/-))...
March 23, 2017: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28332910/association-between-dietary-xanthophyll-lutein-and-zeaxanthin-intake-and-early-age-related-macular-degeneration-the-atherosclerosis-risk-in-communities-study
#15
Henry Lin, Julie A Mares, Michael J LaMonte, William E Brady, Michelle W Sahli, Ronald Klein, Barbara E K Klein, Jing Nie, Amy E Millen
PURPOSE: To examine the association between xanthophyll intake and prevalent early age-related macular degeneration (AMD) using data from the Atherosclerosis Risk in Communities Study (n = 10,295). Potential effect modification by genetic polymorphisms and biomarkers of high-density lipoprotein (HDL) metabolism was explored. METHODS: Xanthophyll intake was assessed at visit 1 (1987-1989) using food frequency questionnaires. Prevalent early AMD was assessed at visit 3 (1993-1995) via retinal photographs...
March 23, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28332896/the-distribution-of-macular-thickness-and-its-determinants-in-a-healthy-population
#16
Hassan Hashemi, Mehdi Khabazkhoob, AbbasAli Yekta, Mohammad Hassan Emamian, Payam Nabovati, Akbar Fotouhi
PURPOSE: To determine the distribution of macular thickness in a healthy Iranian population aged 45-69 years and its association with certain determinants. METHODS: All participants underwent optometric examinations including measurement of uncorrected and corrected visual acuity, objective refraction by retinoscopy, and subjective refraction. Subsequently, all participants underwent slit-lamp biomicroscopy followed by fundus examination through direct and indirect ophthalmoscopy, and optical coherence tomography (OCT) imaging under pupil dilation...
March 23, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28332894/incidence-and-progression-of-diabetic-retinopathy-in-urban-india-sankara-nethralaya-diabetic-retinopathy-epidemiology-and-molecular-genetics-study-sn-dreams-ii-report-1
#17
Rajiv Raman, Suganeswari Ganesan, Swakshyar Saumya Pal, Laxmi Gella, Vaitheeswaran Kulothungan, Tarun Sharma
PURPOSE: To evaluate the 4-year incidence and progression of and risk factors for diabetic retinopathy (DR) in an Indian population. METHODS: From a cross-sectional study of 1425 subjects with diabetes, 911 (63.9%) returned for 4-year follow-up. After excluding 21 with ungradable retinal images, data from 890 subjects were analyzed. Participants underwent examinations based on a standard protocol, which included grading of retinal photographs. RESULTS: The incidences of DR, diabetic macular edema (DME), and sight-threatening diabetic retinopathy (STDR) were 9...
March 23, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28332380/angiographically-documented-macular-ischemia-after-single-bevacizumab-for-macular-edema-secondary-to-central-retinal-vein-occlusion
#18
Kyou Ho Lee, Eui Chun Kang, Hyoung Jun Koh
This report describes a case of angiographically documented foveal avascular zone (FAZ) enlargement after a single intravitreal injection of bevacizumab for macular edema secondary to central retinal vein occlusion (CRVO). A 71-year-old female was treated with an intravitreal bevacizumab injection for macular edema following CRVO. Despite successfully decreased edema one month after injection, the postinjection best-corrected visual acuity immediately decreased from 20/40 to 20/1000 (Snellen equivalent). The FAZ area increased from 0...
May 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/28331281/the-involvement-of-atf4-and-s-opsin-in-retinal-photoreceptor-cell-damage-induced-by-blue-led-light
#19
Emi Ooe, Kazuhiro Tsuruma, Yoshiki Kuse, Saori Kobayashi, Masamitsu Shimazawa, Hideaki Hara
PURPOSE: Blue light is a high-energy emitting light with a short wavelength in the visible light spectrum. Blue light induces photoreceptor apoptosis and causes age-related macular degeneration or retinitis pigmentosa. In the present study, we investigated the roles of endoplasmic reticulum (ER) stress induced by blue light-emitting diode (LED) light exposure in murine photoreceptor cells. METHODS: The murine photoreceptor cell line was incubated and exposed to blue LED light (464 nm blue LED light, 450 lx, 3 to 24 h)...
2017: Molecular Vision
https://www.readbyqxmd.com/read/28330678/acute-macular-edema-and-peripapillary-soft-exudate-after-pancreas-transplantation-with-accelerated-progression-of-diabetic-retinopathy
#20
Fang-Yi Tsai, Ling-Ing Lau, An-Fei Li, Shih-Jen Chen, Shin-E Wang, Fenq-Lih Lee, Catherine Jiu-Lin Liu, Yi-Ming Shyr
BACKGROUND: The effect of pancreas transplantation on diabetic retinopathy remains inconclusive. Herein, we report six patients with type 1 diabetes mellitus (DM) who underwent pancreas transplantation and developed acute macular edema and peripapillary soft exudate with rapid progression to proliferative diabetic retinopathy. METHODS: In this retrospective observational study, diabetic patients who underwent pancreas transplantation in a single medical center and developed symptomatic acute macular edema and peripapillary soft exudate within 3 months after the operation were enrolled...
March 18, 2017: Journal of the Chinese Medical Association: JCMA
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