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ocular coherent tomography

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https://www.readbyqxmd.com/read/28730400/evaluation-of-retrobulbar-blood-flow-and-choroidal-thickness-in-patients-with-rheumatoid-arthritis
#1
Ali Kal, Enes Duman, Almila Sarıgül Sezenöz, Mahmut Oğuz Ulusoy, Öznur Kal
PURPOSE: To evaluate whether retrobulbar blood flow and choroidal thickness (CT) are affected in patients with rheumatoid arthritis (RA), and the relationship between these values. METHODS: We evaluated 40 eyes of 20 RA patients and 40 eyes of 20 healthy controls. The enhanced depth imaging optical coherence tomography, color Doppler imaging, was held. Statistical analysis was performed. RESULTS: Peak systolic velocity (PSV) of ophthalmic (OA) and central retinal artery (CRA) were significantly higher in RA...
July 20, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28730092/parameters-of-ocular-fundus-on-spectral-domain-optical-coherence-tomography-for-glaucoma-diagnosis
#2
REVIEW
Yu-Lin Tao, Li-Ming Tao, Zheng-Xuan Jiang, He-Ting Liu, Kun Liang, Mo-Han Li, Xuan-Sheng Zhu, Yan-Lin Ren, Bing-Jie Cui
In this review, we summarize the progression of several parameters assessed by spectral-domain optical coherence tomography (SD-OCT) in recent years for the detection of glaucoma. Monitoring the progression of defects in the retinal nerve fiber layer (RNFL) thickness is essential. Imaging and analysis of retinal ganglion cells (RGCs) and inner plexiform layer (IPL), respectively, have been of great importance. Optic nerve head (ONH) topography obtained from 3D SD-OCT images is another crucial step. Other important assessments involve locating the Bruch's membrane opening (BMO), estimating the optic disc size and rim area, and measuring the lamina cribrosa displacement...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28729551/change-in-choroidal-blood-flow-and-choroidal-morphology-due-to-segmental-scleral-buckling-in-eyes-with-rhegmatogenous-retinal-detachment
#3
Takeshi Iwase, Misato Kobayashi, Kentaro Yamamoto, Kosei Yanagida, Eimei Ra, Hiroko Terasaki
Although scleral buckling is a well-established surgical treatment for rhegmatogenous retinal detachment (RRD), the procedure can reportedly cause problems in the ocular circulation. Segmental scleral bucking without a concomitant encircling procedure was performed on 46 eyes with successfully reattached macula-on RRD. Choroidal blood flow was assessed using laser speckle flowgraphy. Spectral-domain optical coherence tomography was used to image macular regions, to measure the subfoveal choroidal thickness (SFCT), and to calculate the luminal and the stromal areas by the binarization method preoperatively and 1, 4, 8 and 12 weeks postoperatively...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28727859/space-flight-associated-neuro-ocular-syndrome
#4
Andrew G Lee, Thomas H Mader, C Robert Gibson, William Tarver
New and unique physiologic and pathologic systemic and neuro-ocular responses have been documented in astronauts during and after long-duration space flight. Although the precise cause remains unknown, space flight-associated neuro-ocular syndrome (SANS) has been adopted as an appropriate descriptive term. The Space Medicine Operations Division of the US National Aeronautics and Space Administration (NASA) has documented the variable occurrence of SANS in astronauts returning from long-duration space flight on the International Space Station...
July 20, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28726070/-flow-density-measurements-using-optical-coherence-tomography-angiography-impact-of-age-and-gender
#5
M Alnawaiseh, C Brand, J L Lauermann, N Eter
BACKGROUND: This article presents the normative data for flow density measured using optical coherence tomography (OCT) angiography and the impact of age and gender is evaluated. METHODS: In this study 58 eyes from 58 healthy volunteers with no history of any ocular disease or ocular surgery were included. The OCT angiography imaging was performed using the RTVue XR Avanti with the AngioVue (Optovue, Fremont, CA). The macula was imaged using a 3 × 3 mm scan, and the flow density data in the superficial retinal OCT angiogram and deep retinal OCT angiogram were extracted and analyzed...
July 19, 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28724881/effect-of-carotid-endarterectomy-on-retinal-function-in-asymptomatic-patients-with-hemodynamically-significant-carotid-artery-stenosis
#6
Anna Machalińska, Aleksandra Kowalska-Budek, Miłosz Piotr Kawa, Arkadiusz Kazimierczak, Krzysztof Safranow, Marta Kirkiewicz, Paweł Rynio, Grażyna Wilk, Wojciech Lubiński, Piotr Gutowski, Bogusław Machaliński
INTRODUCTION    The corrective effect of carotid endarterectomy (CEA) on disturbed ophthalmic artery flow in patients with a significant internal carotid artery stenosis (ICAS) presenting with ocular ischemic syndrome (i.e., symptomatic patients) is well established. However, no clear evidence exists regarding the efficacy of CEA for improvement of neuro-retinal function in patients without symptoms of ocular ischemic syndrome. OBJECTIVES    We determined the effects of CEA on retinal function in asymptomatic patients with hemodynamically significant internal carotid artery stenosis...
July 19, 2017: Polish Archives of Internal Medicine
https://www.readbyqxmd.com/read/28724824/late-onset-descemet-s-membrane-detachment-20-years-after-penetrating-keratoplasty
#7
Sharon D'Souza, Narpat Solanki, K R Sushma, Priyank Solanki
This paper reports a case of spontaneous Descemet's Membrane (DM ) detachment 20-years after penetrating keratoplasty (PK). The patient presented with acute onset blurred vision in the right eye associated with mild ocular discomfort. There was no prior history of trauma. The patient had undergone PK in the right eye 20 years back. Detailed ophthalmic examination showed best corrected visual acuity of hand movements close to face in the right eye and 20/80 in the left eye. The right eye showed diffuse graft edema but no congestion, epithelial defect, or loss of continuity of graft-host junction to suggest a traumatic etiology...
July 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28715584/reduced-retinal-vessel-density-in-obstructive-sleep-apnea-syndrome-patients-an-optical-coherence-tomography-angiography-study
#8
Jian Yu, Kuanlin Xiao, Jingjing Huang, Xinghuai Sun, Chunhui Jiang
Purpose: To examine the retinal vasculature in patients with obstructive sleep apnea-hypopnea syndrome (OSAS) and to determine the correlation between retinal vascularity and the severity of OSAS. Design: Prospective, cross-sectional study. Methods: Sixty-nine consecutive subjects who underwent polysomnography were enrolled. Patients were divided into three groups according to the severity of OSAS, which was defined using the apnea-hypopnea index (AHI) as normal-to-mild (AHI <15), moderate (≥15 to <30), or severe (≥30)...
July 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28708222/multimodal-imaging-in-a-patient-with-traumatic-choroidal-ruptures
#9
Luisa Pierro, Chiara Giuffrè, Alessandro Rabiolo, Marco Gagliardi, Alessandro Arrigo, Francesco Bandello
PURPOSE: To describe the case and the follow-up of a traumatic choroidal rupture characterized by means of multimodal imaging including color fundus photographs, infrared reflectance, blue autofluorescence, swept-source optical coherence tomography, fluorescein angiography (FA), indocyanine green angiography (ICGA), and optical coherence tomography angiography (OCT-A). METHODS: Case report. RESULTS: A 17-year-old boy was referred to our clinic complaining of reduction in visual acuity in the right eye (RE) after a blunt ocular trauma during a soccer match...
July 5, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28704163/prevalence-of-macular-abnormalities-assessed-by-optical-coherence-tomography-in-patients-with-usher-syndrome
#10
Francesco Testa, Paolo Melillo, Settimio Rossi, Vincenzo Marcelli, Antonella de Benedictis, Raffaella Colucci, Beatrice Gallo, Raffaella Brunetti-Pierri, Simone Donati, Claudio Azzolini, Elio Marciano, Francesca Simonelli
BACKGROUND: To investigate the prevalence of macular abnormalities in patients affected by Usher syndrome (USH), by comparing the clinical findings between two types (i.e., USH1 and USH2). MATERIAL AND METHODS: A retrospective study was performed by reviewing optical coherence tomography (OCT) in 134 USH patients to determine the presence of macular abnormalities, including cystoid macular edema (CME), epiretinal membrane (ERM), vitreo-macular traction syndrome (VMT), and macular hole (MH)...
July 13, 2017: Ophthalmic Genetics
https://www.readbyqxmd.com/read/28702261/macular-findings-in-spectral-domain-optical-coherence-tomography-and-oct-angiography-in-a-patient-with-kearns-sayre-syndrome
#11
Alvaro Ortiz, Juan Arias, Pedro Cárdenas, John Villamil, Marcela Peralta, Luis C Escaf, Jacobo Ortiz
BACKGROUND: To report the clinical, electrophysiological and the anatomical findings in a patient with Kearns-Sayre syndrome (KSS). CASE PRESENTATION: We present the case of a 55-year-old female with KSS, who developed systemic features and ocular manifestations as ophthalmoplegia and retinal dysfunction, that were corroborated by electrophysiological test and High Definition Spectral Domain Optical Coherence Tomography (HD SD OCT) and OCT-Angiography (OCT-A). CONCLUSION: We report a patient with KSS, accompanied by some alterations of the RPE and photoreceptors observed in the external HD SD OCT and OCT-A...
2017: International Journal of Retina and Vitreous
https://www.readbyqxmd.com/read/28696172/multimodal-imaging-in-retinal-vasculitis
#12
Aniruddha Agarwal, Rubbia Afridi, Rupesh Agrawal, Diana V Do, Vishali Gupta, Quan Dong Nguyen
Retinal vasculitis presents with inflammation involving the retinal vasculature as an isolated disease or in combination with other ocular or systemic conditions. This entity may be associated with a wide variety of clinical manifestations such as vascular sheathing, cotton-wool spots, retinal ischemia, and neovascularization. Often, retinal vasculitis and its complications lead to diagnostic challenges in identifying the exact etiology of the inflammation. Ancillary investigations such as fundus photography, fluorescein angiography, and more recently, adaptive optics imaging and optical coherence tomography angiography, may provide valuable information that help in establishing the exact diagnosis and initiation of appropriate therapy...
June 2017: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/28689243/giant-intrastromal-cleft-in-corneal-hydrops
#13
Virgilio Galvis, Alejandro Tello, Marcela F Cianci, Luis Carlos Escaf, M Margarita Parra
A 15-year-old male patient with corneal hydrops and a giant intrastromal cleft (pseudocyst) successfully received medical treatment with topical prednisolone, hypertonic saline solution and ocular hypotensive eyedrops. Anterior segment optical coherence tomography (OCT) was used as an auxiliary tool for assessing the response to treatment during follow-up time (33 months).
July 8, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28687121/new-imaging-techniques-in-retinal-vasculitis
#14
REVIEW
Marina Mesquida, Víctor Llorens, Alfredo Adán
The term retinal vasculitis (RV) encompasses a heterogeneous group of sight-threatening conditions that are included in the intraocular inflammatory diseases that affect the posterior segment of the eye. Based on the nature of the inflammatory process, RV are classified into predominantly inflammatory or ischaemic (occlusive RV). The diagnosis is clinical and the aetiology can be infectious or non-infectious (immune-mediated). RV can be an isolated ocular syndrome or be associated with a systemic disease, of which they can represent the first manifestation...
July 4, 2017: Medicina Clínica
https://www.readbyqxmd.com/read/28682947/interocular-asymmetry-in-choroidal-thickness-and-retinal-sensitivity-in-high-myopia
#15
Zeyad Alzaben, Genís Cardona, Miguel A Zapata, Ahmad Zaben
PURPOSE: To investigate the normal range of interocular asymmetry in choroidal thickness and retinal sensitivity in high myopia without ocular fundus manifestations and to determine the relationship between interocular asymmetry and refractive error. METHODS: Forty-three patients (35.07 ± 13.31 years) with high myopia and 45 healthy participants (39.9 ± 14.1 years) were administered an ocular coherence tomography and a microperimetry examination to determine choroidal thickness and retinal sensitivity at the foveal region and at 1, 2, and 3 mm, nasally, temporally, superiorly, and inferiorly...
July 6, 2017: Retina
https://www.readbyqxmd.com/read/28677725/two-heterozygous-mutations-identified-in-one-chinese-patient-with-bilateral-macular-coloboma
#16
Tao Li, Ying Lin, Hongbin Gao, Chuan Chen, Yi Zhu, Bingqian Liu, Yu Lian, Yonghao Li, Wenli Zhou, Hongye Jiang, Haichun Li, Qingxiu Wu, Xiaoling Liang, Chenjin Jin, Xinhua Huang, Lin Lu
Congenital macular coloboma is characterized by defined punched out atrophic lesions of the macula. The present study aimed to investigate the genetic alterations of one Chinese sporadic patient with bilateral large macular coloboma. Complete ophthalmic examinations, including best‑corrected visual acuity, slit‑lamp examination, fundus examination, fundus photograph and fundus fluorescein angiography imaging, Pentacam, and optical coherence tomography were performed on the patient. Genomic DNA was extracted from leukocytes in a peripheral blood sample collected from the patient, the patient's unaffected family members and from 200 unrelated control subjects from the same population...
June 29, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28673750/quality-of-vision-in-eyes-with-epiphora-undergoing-lacrimal-passage-intubation
#17
Shizuka Koh, Yasushi Inoue, Shintaro Ochi, Yoshihiro Takai, Naoyuki Maeda, Kohji Nishida
PURPOSE: To investigate visual function and optical quality in eyes with epiphora undergoing lacrimal passage intubation. DESIGN: Prospective case series. METHODS: Thirty-four eyes of 30 patients with lacrimal passage obstruction were enrolled. Before and 1 month after lacrimal passage intubation, functional visual acuity (FVA), higher-order aberrations (HOAs), lower tear meniscus and tear clearance were assessed. An FVA measurement system was used to examine changes in continuous visual acuity (VA) over time, and visual function parameters such as FVA, visual maintenance ratio, and blink frequency were obtained...
June 30, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28671922/a-case-of-bilateral-pigment-dispersion-syndrome-following-many-years-of-uninterrupted-treatment-with-atropine-1-for-bilateral-congenital-cataracts
#18
Corrado Gizzi, Jibran Mohamed-Noriega, Ian Murdoch
PURPOSE: Describe an unusual case of bilateral pigment dispersion syndrome (PDS) following years of uninterrupted treatment with atropine 1% for bilateral congenital cataracts, speculate on potential mechanisms leading to this condition. DESIGN: This is a case report. CASE: A 45-year-old white patient on long-term treatment with atropine 1% ointment since his infancy for bilateral congenital cataracts developed PDS with secondary ocular hypertension...
June 30, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28671154/cross-sectional-observational-study-of-anterior-segment-parameters-using-anterior-segment-optical-coherence-tomography-in-north-indian-population
#19
Latika Khatri Dalal, Renu Dhasmana, Amit Maitreya
PURPOSE: To study the anterior segment (AS) parameters using AS optical coherence tomography (AS-OCT) in the North Indian population. METHODS: A hospital-based, observational, cross-sectional study was conducted over a period of 1 year. It included 251 normal individuals aged 20-70 years. Participants underwent imaging with AS-OCT.Ocular parameters included anterior chamber angle (ACA), iris cross-sectional area (ICSA), iris thickness (IT), and iris curvature (IC)...
July 2017: Annals of African Medicine
https://www.readbyqxmd.com/read/28670632/systemic-sunitinib-malate-treatment-for-advanced-juxtapapillary-retinal-hemangioblastomas-associated-with-von-hippel-lindau-disease
#20
Jared E Knickelbein, Naima Jacobs-El, Wai T Wong, Henry E Wiley, Catherine A Cukras, Catherine B Meyerle, Emily Y Chew
PURPOSE: To describe the clinical course of advanced juxtapapillary retinal capillary hemangioblastomas (RCH) associated with von Hippel-Lindau (VHL) disease treated with systemic sunitinib malate, an agent that inhibits both anti-vascular endothelial growth factor and anti-platelet-derived growth factor signaling. DESIGN: Observational case review. PARTICIPANTS: Three patients with advanced VHL-related juxtapapillary RCH treated with systemic sunitinib malate...
May 2017: Ophthalmology retina
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