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Ocular ultrasound

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https://www.readbyqxmd.com/read/29342438/vitreoretinal-complications-and-outcomes-in-92-eyes-undergoing-surgery-for-modified-osteo-odonto-keratoprosthesis-a-10-year-review
#1
Pukhraj Rishi, Ekta Rishi, Vishvesh Agarwal, Sridevi Nair, Geetha Iyer, Bhaskar Srinivasan, Shweta Agarwal
PURPOSE: To analyze vitreoretinal (VR) complications and treatment outcomes in eyes undergoing modified osteo-odonto-keratoprosthesis (OOKP) surgery. DESIGN: Retrospective case series. PARTICIPANTS: All patients who underwent modified OOKP (mOOKP) surgery at a tertiary eye-care center from March 2003 to February 2013 were included. METHODS: Medical records were reviewed for relevant medical history, best-corrected visual acuity (BCVA), slit-lamp examination, ultrasound scan, oral examination findings, and VR complications...
January 13, 2018: Ophthalmology
https://www.readbyqxmd.com/read/29314142/retinoblastoma-the-visible-cns-tumor-a-review
#2
Helen Dimaras, Timothy W Corson
The pediatric ocular cancer retinoblastoma is the only central nervous system (CNS) tumor readily observed without specialized equipment: it can be seen by, and in, the naked eye. This accessibility enables unique imaging modalities. Here, we review this cancer for a neuroscience audience, highlighting these clinical and research imaging options, including fundus imaging, optical coherence tomography, ultrasound, and magnetic resonance imaging. We also discuss the subtype of retinoblastoma driven by the MYCN oncogene more commonly associated with neuroblastoma, and consider trilateral retinoblastoma, in which an intracranial tumor arises along with ocular tumors in patients with germline RB1 gene mutations...
January 3, 2018: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/29313397/detection-of-extrascleral-extension-in-uveal-melanoma-with-histopathological-correlation
#3
Christopher K H Burris, Vasilios P Papastefanou, Caroline Thaung, Marie Restori, Amit K Arora, Mandeep S Sagoo, Victoria M L Cohen
PURPOSE: Uveal melanoma is the most common primary intraocular malignancy. Extrascleral extension (ESE) is rare, but associated with an increased rate of orbital recurrence and an overall poor prognosis. Clinical studies show low rates when compared with histological studies. Due to the prognostic importance of ESE, we sought to compare our clinical, intraoperative, and histological detection rates. DESIGN: A retrospective cross-sectional case series. METHODS: A list of eyes enucleated for uveal melanoma was compiled from the admissions records of the London Ocular Oncology Service during the 28-month period, i...
January 9, 2018: Orbit
https://www.readbyqxmd.com/read/29285779/analysing-the-ocular-biometry-of-new-born-infants
#4
Jos J Rozema, Zvi Herscovici, Moshe Snir, Ruth Axer-Siegel
PURPOSE: To model and analyse the ocular biometry of new-born infants. METHODS: This work is based on previously published data of a cohort of 66 new-born infants aged 0-3 days. After exclusion of seven myopic subjects, the available retinoscopy, keratometry and ultrasound biometry data were analysed, along with calculated parameters such as lens power and whole eye power. RESULTS: Male infants have significantly flatter corneas that female infants (Mann-Whitney U test, p < 0...
December 29, 2017: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/29282204/surgical-removal-of-a-giant-iris-stromal-cyst-an-intraoperative-optical-coherence-tomography-guided-approach
#5
Rajesh Sinha, Manthan Hasmukhbhai Chaniyara, Jayanand Urkude, Amar Pujari
An 11-year-old girl was brought with the chief complaint of progressive diminution of vision in her right eye for the past 3 months. There was no history of ocular trauma or any ocular surgery. Systemic and family history was insignificant. Visual acuity was 20/20 in her left eye and counting finger close to face with projection of rays being accurate in her right eye. Slit lamp examination of her right eye showed large cystic lesion filling almost entire anterior chamber. With the help of various imaging modalities like anterior segment optical coherence tomography (OCT) and ultrasound biomicroscopy diagnosis of iris stromal cyst was confirmed...
December 27, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29251664/long-term-observation-of-multifocal-metastatic-intraocular-carcinoid-with-acquired-iris-heterochromia
#6
Natalie Wolkow, Frederick A Jakobiec, Evangelos S Gragoudas
BACKGROUND/PURPOSE: To report a unique case of a pulmonary carcinoid tumor unilaterally metastatic to the iris and ciliary body and bilaterally to the choroid that was conservatively followed. METHODS: A 46-year-old woman presented with bilateral choroidal lesions and a left iris tumor. Ultrasound biomicroscopy disclosed a ciliary body component. A diagnosis of metastatic carcinoid tumor was made based on the clinical features. Rather than an excision, photodynamic therapy, or radiation treatment, as has been reported in all previous cases of carcinoid tumor metastatic to the iris, the patient was observed...
December 13, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/29251401/corneal-hysteresis-and-anterior-segment-optical-coherence-tomography-anatomical-parameters-in-primary-angle-closure-suspects
#7
Syed Amal Hussnain, Kyle D Kovacs, Joshua L Warren, Christopher C Teng
IMPORTANCE: Corneal hysteresis (CH) is a dynamic marker of structural and functional changes in the cornea associated with IOP and central corneal thickness, but its utility in assessing primary angle closure suspects (PACS) has not been fully elucidated. BACKGROUND: This study assesses if anterior segment measurements correlate with CH in PACS patients. DESIGN: IRB-approved retrospective review of imaging and records at a university practice...
December 18, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/29246580/measurement-and-associations-of-the-optic-nerve-subarachnoid-space-in-normal-tension-and-primary-open-angle-glaucoma
#8
Hanruo Liu, Diya Yang, Teng Ma, Wenyuan Shi, Zhu Qiang, Jun Kang, Ningli Wang
PURPOSE: To measure the area of the optic nerve subarachnoid space (ONSASA) in patients with normal tension (NTG), primary open angle glaucoma (POAG) and controls and examine its association with relevant ocular and systemic parameters. DESIGN: Cross-sectional study. METHODS: The study included 40 patients with NTG, 42 with POAG and 45 healthy controls. B-scan ultrasound was performed binocularly, using a 12.5 MHz linear array probe. The measurement of the optic nerve subarachnoid space (ONSAS) and calculation of the ONSASA were used ImageJ1...
December 12, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/29243006/ocular-ultrasound-for-monitoring-pseudotumor-cerebri-syndrome
#9
Piergiorgio Lochner, Klaus Fassbender, Martin Lesmeister, Raffaele Nardone, Andrea Orioli, Francesco Brigo, Erwin Stolz
The aim of this study was to evaluate the feasibility of ocular ultrasound in the follow-up of pseudotumor cerebri syndrome and to correlate ultrasound with clinical parameters. In a cohort study of 22 consecutive adult patients, ocular ultrasound was performed measuring optic nerve sheath diameter, optic nerve diameter, and optic disc elevation compared with symptoms referred by the patients. The patients showed increased optic nerve sheath diameter [median, 6.51 mm (interquartile range 6.13-7.10)], optic nerve diameter [3...
December 14, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/29233246/intraocular-lens-use-in-an-astronaut-during-long-duration-spaceflight
#10
Thomas H Mader, C Robert Gibson, Josef F Schmid, William Lipsky, Ashot E Sargsyan, Kathleen Garcia, Jeffrey N Williams
BACKGROUND: The purpose of this paper is to report the first use of an intraocular lens (IOL) in an astronaut during long duration spaceflight (LDSF). An astronaut developed a unilateral cataract and underwent phacoemulsification with insertion of an acrylic IOL. Approximately 15 mo later he flew on a Soyuz spacecraft to the International Space Station (ISS), where he successfully completed a 6-mo mission. CASE REPORT: Ocular examination, including ultrasound (US), was performed before, during, and after his mission and he was questioned regarding visual changes during each portion of his flight...
January 1, 2018: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/29228915/qualitative-and-quantitative-evaluation-of-acute-angle-closure-mechanisms
#11
Yanin Suwan, Sunpong Jiamsawad, Apichat Tantraworasin, Lawrence Geyman, Wasu Supakontanasan, Chaiwat Teekhasaenee
BACKGROUND: To evaluate ocular biometric parameters in different subtypes of acute angle closure and compared to fellow eyes of AAC and PACS eyes. METHODS: This is a retrospective chart review study. A total of 167 eyes (96 patients) consisting of 71 AAC eyes, 71 fellow eyes of AAC, and 25 PACS eyes were recruited. All patients underwent ocular examination and biometry. The mechanism of AAC was confirmed by ultrasound biomicroscopy. We then subdivided AAC eyes into four subgroups: crowded-angle (CR), lens subluxation (LS) pupillary block (PB), and plateau iris syndrome (PL)...
December 11, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/29219953/specific-retinal-phenotype-in-early-iqcb1-related-disease
#12
A Vincent, A AlAli, H MacDonald, C VandenHoven, E Héon
PurposeTo describe the ocular and systemic phenotype in IQCB1-related disease.MethodsFour cases (3 males, 1 female) with molecularly confirmed IQCB1-related disease underwent ophthalmological examination including best-corrected visual acuity (BCVA) measurement, fundus evaluation, electroretinography (ERG), and spectral-domain optical coherence tomography (SD-OCT). Systemic evaluation including abdominal ultrasound was performed in all cases.ResultsBCVA ranged from perception of light (Case-2; 1 year) to 20/125 (Case-1; 9 years)...
December 8, 2017: Eye
https://www.readbyqxmd.com/read/29205744/rabbits-with-naturally-occurring-cataracts-referred-for-phacoemulsification-and-intraocular-lens-implantation-a-preliminary-study-of-12-cases
#13
Rick F Sanchez, Richard Everson, Joanna Hedley, Charlotte Dawson, Richard Lam, Simon L Priestnall, Alejandra Garcia de Carellan, Cristina de Miguel, Christopher Seymour
OBJECTIVE: To describe the presentation of 15 rabbits with naturally occurring cataracts referred for phacoemulsification surgery, the procedure in 13 cases and the follow-up in 12. ANIMALS INCLUDED: Fifteen rabbits (30 eyes), nine of which stopped following visual cues in association with cataract progression. MATERIALS AND METHODS: Rabbits underwent preoperative ophthalmic and ocular ultrasound examination. RESULTS: Thirteen rabbits (22 eyes) had mature cataracts...
December 4, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/29157067/role-of-endoscopic-ultrasound-in-the-management-of-tubercular-uveitis
#14
Deepa Sharma, Manisha Agarwal, Vikas Singla, Vivek Jha, Ankita Shrivastav
PURPOSE: To evaluate the role and safety of endoscopic ultrasound-guided fine-needle aspiration cytology (EUS-FNAC) in patients of tubercular uveitis. DESIGN: Interventional case series Methods: Thirty patients suspected of tubercular uveitis that underwent EUS-FNAC were enrolled in the study. The patient details recorded were age, gender, systemic history, ocular complaints and clinical manifestations. The details of the investigations - skin test, X-Ray chest, CECT (contrast enhanced computed tomography) of chest and findings on EUS-FNAC were also recorded...
November 20, 2017: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/29141389/-ultrasonic-diagnosis-of-retinal-detachment-in-eyes-with-silicone-oil-tamponade
#15
Y F Li, D J Li, Z Y Wang, W Chen, Q Zhao, R Cui, L Shen, W L Yang
Objective: To examine the features and values of ultrasonic diagnosis for retinal detachment in eyes with silicone oil tamponade (SOT). Methods: A prospective study. A total of 257 eyes (257 patients) were filled with silicone oil between December 1, 2015 and August 1, 2016 in the Department of Ophthalmology at a hospital in Beijing. All of the patients underwent a color Doppler ultrasound examination in the supine and sitting positions a week prior to surgery. The pre-surgery conditions were compared with the subsequent observations during the surgery to analyze the features and values of ultrasonic diagnosis for retinal detachment in eyes with SOT...
November 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29135355/changes-in-ocular-hemodynamics-after-carotid-artery-angioplasty-and-stenting-caas-in-patients-with-different-severity-of-ocular-ischemic-syndrome
#16
Feiyan Ma, Jing Su, Qingli Shang, Jingxue Ma, Tongdi Zhang, Xin Wang, Honglei Ma, Jianghua Yu
PURPOSE: To evaluate the effects of carotid artery angioplasty and stenting (CAAS) on patients who were diagnosed with ocular ischemic syndrome (OIS). METHODS: Sixty-four eyes of 64 OIS patients with ipsilateral internal carotid artery stenosis ≥70% were included in the study. The study eyes were divided into two groups according to the presence of iris neovascularization: NVI-absent group and NVI-present group, with 32 eyes, respectively. All patients received ocular treatment modality according to the presence of non-perfusion area (pan-retinal photocoagulation) and intraocular pressure (medical treatment included timolol maleate eye drops combined with brinzolamide eye drop; trabeculectomy and cyclophotocoagulation)...
November 14, 2017: Current Eye Research
https://www.readbyqxmd.com/read/29122822/posterior-keratoconus
#17
REVIEW
Megan R Silas, Sarah M Hilkert, James J Reidy, Asim V Farooq
Posterior keratoconus (PKC) is a rare, typically non-inflammatory condition that is characterised by an abnormal posterior corneal curvature, which may be accompanied by overlying stromal opacification. It is usually congenital and can be associated with other ocular and systemic abnormalities. PKC remains a clinical diagnosis, although imaging techniques including ultrasound biomicroscopy and anterior segment optical coherence tomography may be useful tools for confirmation and classification. Genetic studies should be considered, although no specific genetic defects have been identified thus far...
November 9, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29115040/telecytology-is-it-possible-with-smartphone-images
#18
Davut Sahin, Uguray Payam Hacisalihoglu, Saime Hale Kirimlioglu
INTRODUCTION: This study aimed to discuss smartphone usage in telecytology and determine intraobserver concordance between microscopic cytopathological diagnoses and diagnoses derived via static smartphone images. METHODS: The study was conducted with 172 cytologic material. A pathologist captured static images of the cytology slides from the ocular lens of a microscope using a smartphone. The images were transferred via WhatsApp® to a cytopathologist working in another center who made all the microscopic cytopathological diagnoses 5-27 months ago...
November 8, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/29055729/central-retinal-artery-occlusion-without-underlying-chronic-ocular-ischemic-syndrome-may-lead-to-neovascular-glaucoma
#19
A Degoumois, S Miocque, E Denion
INTRODUCTION: The prevalence and etiology of neovascular glaucoma (NVG) as a complication of central retinal artery occlusion (CRAO) is a debated issue. According to some authors, NVG associated with CRAO always involves underlying chronic ocular ischemic syndrome (COIS) as a primum movens for CRAO. However, we describe 5 cases of NVG following CRAO with no underlying COIS, confirmed by carotid Doppler studies and ultrasound color Doppler imaging (USCDI) of the ophthalmic artery (OA)...
November 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/29054896/metastatic-melanoma-of-unknown-primary-in-the-temporalis-muscle
#20
Marco Dalle Carbonare, Mei Xien Goh, Zainab AlshiekhAli, David Howlett
Melanomas are aggressive cancers that present as cutaneous, mucosal and ocular lesions with the ability to metastasise widely. There are, however, occasions where lesions are found in distant sites such as lymph nodes, viscera and subcutaneous tissues without clinically apparent skin involvement. This is known as metastatic melanoma of unknown primary (MUP). Its presentation in skeletal muscle is rare, and the available literature is sparse. This article presents an 85-year-old woman with a MUP presenting in the right temporalis muscle, which was diagnosed with the aid of the ultrasound-guided core biopsy...
October 20, 2017: BMJ Case Reports
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