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https://www.readbyqxmd.com/read/28105373/vascular-changes-on-fluorescein-angiography-of-premature-infants-with-low-risk-of-retinopathy-of-prematurity-after-high-oxygen-exposure
#1
Maria Ana Martinez-Castellanos, Raul Velez-Montoya, Kenneth Price, Andree Henaine-Berra, Gerardo García-Aguirre, Virgilio Morales-Canton, Linda Alejandra Cernichiaro-Espinosa
PURPOSE: To describe a wide array of peripheral vascular changes using fluorescein angiography in preterm neonates, without high risk characteristics for developing retinopathy of prematurity, that were exposed to high oxygen concentration. METHODS: Retrospective, two center, case series. Newborns at two different hospitals with ≥1500 g or gestational age of ≥32 weeks, fluorescein angiography performed, and with high oxygen exposure without adequate control were included...
2017: International Journal of Retina and Vitreous
https://www.readbyqxmd.com/read/28101399/stimulus-evoked-outer-segment-changes-occur-before-the-hyperpolarization-of-retinal-photoreceptors
#2
Yiming Lu, Benquan Wang, David R Pepperberg, Xincheng Yao
Transient retinal phototropism (TRP) has been predominantly observed in rod photoreceptors activated by oblique visible light stimulation. Dynamic confocal microscopy and optical coherence tomography (OCT) have revealed rod outer segment (ROS) movement as the physical source of TRP. However, the physiological source of ROS movement is still not well understood. In this study, concurrent near-infrared imaging of TRP and electroretinogram (ERG) measurement of retinal electrophysiology revealed that ROS movement occurs before the onset of the ERG a-wave, which is known to reflect the hyperpolarization of retinal photoreceptors...
January 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28101046/a-case-of-proliferative-retinopathy-complicated-with-tuberous-sclerosis-treated-by-vitreous-surgery
#3
Emika Nemoto, Seita Morishita, Mari Akashi, Ryohsuke Kohmoto, Masanori Fukumoto, Hiroyuki Suzuki, Takatoshi Kobayashi, Teruyo Kida, Jun Sugasawa, Tsunehiko Ikeda
We report a case of proliferative retinopathy complicated with retinal hamartoma in a tuberous sclerosis patient. This study involved a 16-year-old female patient who was diagnosed as having tuberous sclerosis at birth. Ophthalmic examination revealed retinal hamartoma surrounding the optic disc in both eyes. Vitreous surgery involving a vitrectomy and resection of the proliferative membranes was performed for proliferative retinopathy in her right eye. Postoperative fundus findings showed improvement and decreased exudative changes...
September 2016: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28100483/electrophysiological-changes-in-12-year-old-children-born-mlp-reduced-vep-amplitude-in-mlp-children
#4
Lina H Raffa, Josefin Nilsson, Jovanna Dahlgren, Marita Andersson Grönlund
AIM: To study the electrophysiological changes in relation to fundus morphology in moderate-to-late preterm (MLP) children with no previous history of retinopathy of prematurity. METHODS: Visual acuity (VA), refraction and fundus variables measured by optical coherence tomography, pattern reversal visual evoked potentials and full-field electroretinography (ff-ERG) were obtained from 22 twelve-year-old MLP children (11 male, 11 female) and 21 full-term controls...
January 18, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28096653/applicability-of-automatic-spectral-domain-optical-coherence-tomography-for-glaucoma-mass-screening
#5
Tadashi Nakano, Takeshi Hayashi, Toru Nakagawa, Toru Honda, Satoshi Owada, Hitoshi Endo, Masayuki Tatemichi
PURPOSE: To perform a preliminary evaluation of the applicability of automatic spectral domain optical coherence tomography (ASD-OCT) for glaucoma mass screening in a population-based setting. METHODS: Information using ASD-OCT (thicknesses of the macular retinal nerve fiber layer [mRNFL], disc retinal nerve fiber layer [dRNFL], ganglion cell layer [GCL] + inner plexiform layer [IPL]; GCL+, and ganglion cell complex [GCL + IPL + RNFL; GCL++]) was obtained from 245 eyes of 123 glaucomatous subjects and 1,454 eyes of 727 normal subjects...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28095089/comparative-data-on-sd-oct-for-a-retinal-nerve-fiber-layer-and-retinal-macular-thickness-in-a-large-cohort-with-marfan-syndrome
#6
WanWan Xu, Sudhi P Kurup, Amani A Fawzi, Mary K Durbin, Irene H Maumenee, Marilyn B Mets
PURPOSE: To report the distribution of macular and optic nerve topography in the eyes of individuals with Marfan syndrome aged 8-56 years using spectral domain optical coherence tomography (SD-OCT). METHODS: Thirty-three patients with Marfan syndrome underwent a full eye examination including slit-lamp biomicroscopy, indirect ophthalmoscopy, and axial length measurement; and SD-OCT measurements of the retinal nerve fiber layer (RNFL) and macular thickness. RESULTS: For patients between the ages of 8 and 12 years, the average RNFL thickness is 98 ± 9 μm, the vertical cup to disc (C:D) ratio is 0...
January 17, 2017: Ophthalmic Genetics
https://www.readbyqxmd.com/read/28094585/relationship-between-plasma-homocysteine-level-and-glaucomatous-retinal-nerve-fiber-layer-defect
#7
Jae Yeun Lee, Joon Mo Kim, In Tae Kim, Chung Kwon Yoo, Yu Sam Won, Jung Hoon Kim, Hyun Seok Kwon, Ki Ho Park
AIMS: To investigate the association between plasma homocysteine levels and glaucomatous retinal nerve fiber layer (RNFL) defect in South Korean population. MATERIALS AND METHODS: This retrospective cross-sectional study included subjects who underwent screening at Kangbuk Samsung Hospital Health Screening Center between August 2012 and July 2013. Subjects underwent physical examination and provided samples for laboratory analysis of homocysteine. Subjects were divided equally into four quartiles (Qs) based on plasma homocysteine level...
January 17, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28094062/-optic-disc-granuloma-secondary-to-sarcoidosis
#8
L Qu-Knafo, A Auregan-Giocanti
We report a case of optic disc granuloma due to sarcoidosis. A 64-year-old, caucasian female with a history of pulmonary sarcoidosis presented with a vision loss on her left eye. The ophthalmologic examination revealed a discrete optic disc infiltrate compatible with the diagnosis of optic disc granuloma. Fluorescein angiography showed diffusion and impregnation of the granuloma without vascularitis. The optical coherence tomography demonstrated a homogenous and isoreflective lesion at the optic disc. The patient recovered her visual acuity after systemic corticosteroid treatment...
January 13, 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/28088510/association-between-nocturnal-blood-pressure-dips-and-optic-disc-hemorrhage-in-patients-with-normal-tension-glaucoma
#9
Junki Kwon, Jinyoung Lee, Jaewan Choi, Dawoon Jeong, Michael S Kook
PURPOSE: To investigate the effect of nocturnal blood pressure (BP) dips on the occurrence of optic disc hemorrhage (ODH) in normal-tension glaucoma (NTG) patients and determine whether ODH is associated with greater likelihood of visual field progression (VFP). DESIGN: Prospective case-control study. METHODS: This study enrolled 698 eyes of 349 consecutive NTG patients who were ≥40 years old, underwent 24 hour intraocular pressure and ambulatory BP monitoring in the habitual position, were examined for ODH every 4-6 months with optic disc photography, and had ≥ five reliable VF tests with minimum follow-up of 3 years...
January 11, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28088508/relationship-between-central-retinal-vessel-trunk-location-and-visual-field-loss-in-glaucoma
#10
Mengyu Wang, Hui Wang, Louis R Pasquale, Neda Baniasadi, Lucy Q Shen, Peter J Bex, Tobias Elze
PURPOSE: To study the relationship between horizontal central retinal vessel trunk location (CRVTL) on glaucomatous optic discs and sector-specific visual field (VF) loss. DESIGN: Retrospective, cross-sectional study. METHODS: CRVTL of 421 eyes from 421 patients was manually tracked on the horizontal optic disc axis on fundus images. Focal circumpapillary retinal nerve fiber layer thickness (cpRNFLT) measurements were extracted from optical coherence tomography (OCT)...
January 11, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28078412/simultaneous-determination-of-four-food-allergens-using-compact-disc-immunoassaying-technology
#11
Ahmed Ali Badran, Sergi Morais, Ángel Maquieira
A multiplex competitive microimmunoassay for the simultaneous determination of gliadin, casein, β-lactoglobulin, and ovalbumin is presented. The assay in microarray format is performed on a DVD where the allergens are physisorbed on the polycarbonate surface of the disc. The immunointeraction is detected using a mixture of specific gold-labeled antibodies and the signal amplified with the silver enhancement method. The optical density of the precipitate, read by a DVD drive, is related to the concentration of the four allergens in sample...
January 11, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28076574/macular-hemorrhage-after-roller-coaster-riding-in-a-single-eyed-patient-with-congenital-glaucoma
#12
Dilek Guven, Zeynep Acar, Mehmet Demir, Yekta Sendul, Atilla Gokce Demir, Erdem Ergen
A 21-year-old female presented with a 4-day history of decreased vision in her only functional eye (right eye, OD). She had a history of multiple ocular surgeries in both eyes because of congenital glaucoma and had lost light perception in her left eye several years prior. Ophthalmological examination revealed 0.15 Snellen visual acuity, and fundoscopy revealed nearly total cupping and pallor of the optic disc and multiple retinal hemorrhagic foci in the macula in OD. Lesions spontaneously resolved over a few months...
November 2016: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/28074271/-erratum-to-optic-disc-swelling-a%C3%A2-compilation-of-relevant-differential-diagnoses
#13
V Prokosch, D C Dragnea, S Pitz
No abstract text is available yet for this article.
January 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28073927/new-insights-into-the-genetics-of-primary-open-angle-glaucoma-based-on-meta-analyses-of-intraocular-pressure-and-optic-disc-characteristics
#14
Henriët Springelkamp, Adriana I Iglesias, Aniket Mishra, René Höhn, Robert Wojciechowski, Anthony P Khawaja, Abhishek Nag, Ya Xing Wang, Jie Jin Wang, Gabriel Cuellar-Partida, Jane Gibson, Jessica N Cooke Bailey, Eranga N Vithana, Puya Gharahkhani, Thibaud Boutin, Wishal D Ramdas, Tanja Zeller, Robert N Luben, Ekaterina Yonova-Doing, Ananth C Viswanathan, Seyhan Yazar, Angela J Cree, Jonathan L Haines, Jia Yu Koh, Emmanuelle Souzeau, James F Wilson, Najaf Amin, Christian Müller, Cristina Venturini, Lisa S Kearns, Jae Hee Kang, Neighborhood Consortium, Yih Chung Tham, Tiger Zhou, Elisabeth M van Leeuwen, Stefan Nickels, Paul Sanfilippo, Jiemin Liao, Herma van der Linde, Wanting Zhao, Leonieke M E van Koolwijk, Li Zheng, Fernando Rivadeneira, Mani Baskaran, Sven J van der Lee, Shamira Perera, Paulus T V M de Jong, Ben A Oostra, André G Uitterlinden, Qiao Fan, Albert Hofman, E- Shyong Tai, Johannes R Vingerling, Xueling Sim, Roger C W Wolfs, Yik Ying Teo, Hans G Lemij, Chiea Chuen Khor, Rob Willemsen, Karl J Lackner, Tin Aung, Nomdo M Jansonius, Grant Montgomery, Philipp S Wild, Terri L Young, Kathryn P Burdon, Pirro G Hysi, Louis R Pasquale, Tien Yin Wong, Caroline C W Klaver, Alex W Hewitt, Jost B Jonas, Paul Mitchell, Andrew J Lotery, Paul J Foster, Veronique Vitart, Norbert Pfeiffer, Jamie E Craig, David A Mackey, Christopher J Hammond, Janey L Wiggs, Ching-Yu Cheng, Cornelia M van Duijn, Stuart MacGregor
Primary open-angle glaucoma (POAG), the most common optic neuropathy, is a heritable disease. Siblings of POAG cases have a ten-fold increase risk of developing the disease. Intraocular pressure (IOP) and optic nerve head characteristics are used clinically to predict POAG risk. We conducted a genome-wide association meta-analysis of IOP and optic disc parameters and validated our findings in multiple sets of POAG cases and controls. Using imputation to the 1000 genomes (1000G) reference set, we identified 9 new genomic regions associated with vertical cup disc ratio (VCDR) and 1 new region associated with IOP...
January 10, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28073365/neurophthalmological-conditions-mimicking-glaucomatous-optic-neuropathy-analysis-of-the-most-common-causes-of-misdiagnosis
#15
Diego Torres Dias, Michele Ushida, Roberto Battistella, Syril Dorairaj, Tiago Santos Prata
BACKGROUND: To analyze the most common neurophthalmological conditions that may mimic glaucomatous optic neuropathy and to determine which most often lead to misdiagnosis when evaluated by a glaucoma specialist. METHODS: We reviewed the charts of consecutive patients with optic neuropathies caused by neurophthalmological conditions screened in a single Eye Clinic within a period of 24 months. Within these enrolled patients, we selected the eyes whose fundoscopic appearance could resemble glaucoma based in pre-defined criteria (vertical cup-to-disc ratio ≥0...
January 10, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28068950/corneal-hysteresis-in-patients-with-glaucoma-like-optic-discs-ocular-hypertension-and-glaucoma
#16
Melissa L Murphy, Olya Pokrovskaya, Marie Galligan, Colm O'Brien
BACKGROUND: To compare corneal hysteresis (CH) measurements between patients with glaucoma, ocular hypertension (OHT) and glaucoma-like optic discs (GLD)- defined as a cup to disc ratio greater than or equal to 0.6 with normal intraocular pressure (IOP) and visual fields. The secondary aim was to investigate whether corneal resistance factor (CRF) and central corneal thickness (CCT) differ between patient groups. METHODS: In this cross sectional study a total of 123 patients (one eye each) were recruited from a glaucoma outpatient department to undergo ocular response analyser (ORA) testing and ultrasound pachymetry as well as clinical examination...
January 10, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28068370/visualization-of-radial-peripapillary-capillaries-using-optical-coherence-tomography-angiography-the-effect-of-image-averaging
#17
Shelley Mo, Erika Phillips, Brian D Krawitz, Reena Garg, Sarwat Salim, Lawrence S Geyman, Eleni Efstathiadis, Joseph Carroll, Richard B Rosen, Toco Y P Chui
OBJECTIVES: To assess the effect of image registration and averaging on the visualization and quantification of the radial peripapillary capillary (RPC) network on optical coherence tomography angiography (OCTA). METHODS: Twenty-two healthy controls were imaged with a commercial OCTA system (AngioVue, Optovue, Inc.). Ten 10x10° scans of the optic disc were obtained, and the most superficial layer (50-μm slab extending from the inner limiting membrane) was extracted for analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28061514/a-genome-wide-association-study-of-vertical-cup-disc-ratio-in-a-latino-population
#18
Drew R Nannini, Mina Torres, Yii-Der I Chen, Kent D Taylor, Jerome I Rotter, Rohit Varma, Xiaoyi Gao
Purpose: Vertical cup-disc ratio (VCDR) is used as a clinical assessment measure to identify and monitor glaucomatous damage to the optic nerve. Previous genetic studies conducted in European and Asian populations have identified many loci associated with VCDR. The genetic factors in other ethnic populations, such as Latino, influencing VCDR remain to be determined. Here, we describe the first genome-wide association study (GWAS) on VCDR in Latino individuals. Methods: We conducted this GWAS on VCDR using 4537 Latino individuals who were genotyped by using either the Illumina OmniExpress BeadChip (∼730K markers) or the Illumina Hispanic/SOL BeadChip (∼2...
January 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28060135/melanocytoma-or-juxtapapillary-melanoma
#19
Brandon J Baartman, Baseer Ahmad, Sunil Srivastava, Stephen Jones, Arun D Singh
PURPOSE: To report the case of a melanocytoma of the optic disc leading to severe vision loss, raising concern for possible malignant transformation and optic nerve infiltration. METHODS: Case report. RESULTS: A 36-year-old Arabic woman presented to an outside facility with severe vision loss and a clinical picture concerning for optic neuritis with central retinal vein occlusion. On referral to the authors' institution 1 month after initial presentation, the vision of the patient was no light perception in the affected eye, and examination revealed the presence of a pigmented lesion adjacent to the nerve...
January 2, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28058166/imaging-methods-in-the-diagnosis-of-optic-disc-drusen
#20
REVIEW
Betül Tuğcu, Hakan Özdemir
Optic disc drusen (ODD) are benign congenital anomalies of the optic nerve characterized by calcified hyaline bodies. While superficial drusen can be diagnosed easily during fundus examination, detecting buried drusen requires the use of additional imaging methods such as B-scan ultrasonography (USG), fundus fluorescein angiography (FFA), computed tomography (CT) and fundus autofluorescence (FAF). ODD can be detected by USG with the presentation of highly reflective round structures. ODD appear as hyperautofluorescent areas on FAF and bright spots on CT scans...
October 2016: Turkish Journal of Ophthalmology
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