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Ultrasound biomicroscopy

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https://www.readbyqxmd.com/read/27911429/-iridal-lymphoma-clinical-case
#1
S V Saakyan, E B Myakoshina
This is a case report of rare iridal involvement in intraocular lymphoma confirmed by the full range of diagnostic measures, including ultrasound biomicroscopy, optical coherence tomography of the anterior segment of the eye, iridectomy with biopsy and further cytological and histopathological examination of the obtained material.
2016: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/27911425/-biometric-parameters-of-vitrectomized-eyes
#2
S V Asatryan, V K Surguch, S I Kharlap, T A Shchegoleva
AIM: To analyze changes in various biometric parameters after vitrectomy. MATERIAL AND METHODS: A total of 50 patients (50 eyes) were followed up. All of them underwent vitrectomy for idiopathic epiretinal fibrosis and macular hole. In addition to the standard ophthalmic examination, we performed a combined ultrasound study and ultrasound biomicroscopy before and after the surgery (at 2-3 weeks and 6 months). Variation statistics was applied to assess the results using the SPSS Statistica 20 software...
2016: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/27898469/update-on-pigment-dispersion-syndrome-and-pigmentary-glaucoma
#3
Kingsley Okafor, Kateki Vinod, Steven J Gedde
PURPOSE OF REVIEW: The present article reviews the clinical features and pathogenesis of pigment dispersion syndrome and pigmentary glaucoma and provides an update regarding their diagnosis and management. RECENT FINDINGS: Newer imaging modalities including ultrasound biomicroscopy and anterior segment optical coherence tomography facilitate visualization of the iris concavity characteristic of eyes with pigment dispersion syndrome and pigmentary glaucoma. Patients with pigmentary glaucoma may be distinguished from those with other glaucoma types by the presence of typical symptoms, personality type, and patterns of diurnal intraocular pressure fluctuation...
November 25, 2016: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/27846838/effects-of-shenlian-extract-on-experimental-atherosclerosis-in-apoe-deficient-mice-based-on-ultrasound-biomicroscopy
#4
Yan Guo, Xu-Cen Liu, Ya-Jie Wang, Qi Li, Qing Yang, Xiao-Gang Weng, Ying Chen, Wei-Yan Cai, Xiao-Xi Kan, Xi Chen, He-Fei Huang, Xiao-Xin Zhu, Yu-Jie Li
BACKGROUND: This study directly and dynamically investigated the effects of SL extract (i.e., a combination of Radix Salviae miltiorrhizae and Andrographis paniculata extract) on plaque progression in vivo by high resolution ultrasound biomicroscopy (UBM). METHODS: An atherosclerosis model was established by placing a perivascular collar on the right common carotid artery in apolipoprotein E-deficient (ApoE(-/-)) mice. Thickness, plaque area and local blood flow were observed by UBM, pathological changes were observed by histochemical staining, and lipid levels were measured by respective commercially available kits...
November 15, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27826065/image-features-of-lens-opacity-in-pediatric-cataracts-using-ultrasound-biomicroscopy
#5
Daoman Xiang, Lihong Chen, Lanxiang Hu, Shengfang Song, Wanhua Xie, Jingji Long
PURPOSE: To study lens opacity in pediatric cataract images captured using ultrasound biomicroscopy (UBM). METHODS: The medical records of patients operated on from September 2012 to October 2013 were reviewed retrospectively. Prior to surgery, patients were placed in the supine position under sedation with oral chloral hydrate for UBM imaging. Lens morphology was evaluated by UBM examination with a 50 MHz probe that was equipped with a water bag instead of the standard plastic shell...
November 5, 2016: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/27811575/comparison-of-anterior-chamber-parameters-in-patients-with-plateau-iris-configuration-and-pupillary-block-using-asoct
#6
Sasan Moghimi, Mohammadyaser Kiaroudi, Paul Coh, Yingjie Li, Mingguang He, Shan C Lin
PURPOSE: To quantitatively analyze the anterior chamber parameters in patients with pupillary block (PB) and plateau iris configuration (PIC) using anterior segment optical coherence tomography (ASOCT). PATIENTS AND METHODS: In this cross-sectional study, nonglaucomatous subjects consecutively recruited and a total of 212 eyes divided into 3 groups of PIC (31 eyes), PB (60 eyes), and open angles (121 eyes) based on gonioscopic and ultrasound biomicroscopy findings...
November 2, 2016: Journal of Glaucoma
https://www.readbyqxmd.com/read/27800176/anterior-segment-imaging-in-ocular-surface-squamous-neoplasia
#7
REVIEW
Sally S Ong, Gargi K Vora, Preeya K Gupta
Recent advances in anterior segment imaging have transformed the way ocular surface squamous neoplasia (OSSN) is diagnosed and monitored. Ultrasound biomicroscopy (UBM) has been reported to be useful primarily in the assessment of intraocular invasion and metastasis. In vivo confocal microscopy (IVCM) shows enlarged and irregular nuclei with hyperreflective cells in OSSN lesions and this has been found to correlate with histopathology findings. Anterior segment optical coherence tomography (AS-OCT) demonstrates thickened hyperreflective epithelium with an abrupt transition between abnormal and normal epithelium in OSSN lesions and this has also been shown to mimic histopathology findings...
2016: Journal of Ophthalmology
https://www.readbyqxmd.com/read/27790134/optical-coherence-tomography-angiography-of-iris-nevus-a-case-report
#8
Davide Allegrini, Giovanni Montesano, Alfredo Pece
Iris nevus is common: 6% of patients with suspected iris melanoma have lesions other than melanoma, and 36% of them are nevi. Iris nevus turns into melanoma in approximately 8% of cases at a mean of 15 years. This case report provides the first description of an iris tumor examined with iris optical coherence tomography angiography (OCTA) compared to iris fluorescein angiography (IFA). A 60-year-old man with a diagnosis of iris nevus in the left eye was referred to our department for IFA and iris OCTA. The iris vasculature in IFA was visible only in the early phases, but not clearly...
September 2016: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/27770479/hidden-mechanisms-beyond-the-pupillary-block-in-acute-angle-closure-ultrasound-biomicroscopic-study
#9
Yanin Suwan, Sunpong Jiamsawad, Wasu Supakontanasan, Chaiwat Teekhasaenee
BACKGROUND: To evaluate the mechanisms of acute angle-closure (AAC) other than the pupillary block using ultrasound biomicroscopy DESIGN: Retrospective chart review. PARTICIPANTS: All patients who were diagnosed with AAC in Ramathibodi Hospital, Bangkok, Thailand, between June 2011 and February 2015 were enrolled. METHODS: 72 patients who were diagnosed with AAC underwent a detailed ocular examination. The diagnosed mechanism of AAC was confirmed by UBM and ocular biometry...
October 22, 2016: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/27760732/maternal-vascular-responses-to-hypoxia-in-a-rat-model-of-intrauterine-growth-restriction
#10
Mais M Aljunaidy, Jude S Morton, Christy-Lynn Cooke, Sandra T Davidge
Intrauterine growth restriction (IUGR) is a common pregnancy complication and is a leading cause of fetal morbidity and mortality. Placental hypoxia contributes to adverse fetal consequences, such as IUGR. Exposing pregnant rats to hypoxia can lead to IUGR; however, assessment of maternal vascular function in a rat model of hypoxia, and the mechanisms that may contribute to adverse pregnancy outcomes, has not been extensively studied. We hypothesized that exposing pregnant rats to hypoxia will affect maternal systemic vascular function and increase the uterine artery resistance index (RI), which will be associated with IUGR...
December 1, 2016: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/27755196/limbal-stem-cell-preservation-during-proton-beam-irradiation-for-diffuse-iris-melanoma
#11
Arun D Singh, William J Dupps, Charles V Biscotti, John H Suh, Kira L Lathrop, John P Nairn, Helen Shih
PURPOSE: To report the outcome after limbal stem cell preservation during proton beam irradiation for diffuse iris melanoma. METHODS: This is a single-case report of diffuse iris melanoma that was managed with proton beam radiation (53 Gy), wherein preemptively harvested superior and inferior limbal stem cells before radiation were replaced after irradiation. Regeneration of the palisades of Vogt and the limbal stem cells was documented by an optical coherence tomography-based imaging protocol...
January 2017: Cornea
https://www.readbyqxmd.com/read/27755187/macular-corneal-dystrophy-and-posterior-corneal-abnormalities
#12
Yair Rubinstein, Chen Weiner, Adi Einan-Lifshitz, Noa Chetrit, Nadav Shoshany, David Zadok, Isaac Avni, Eran Pras
PURPOSE: This study reports the presentation of 2 families with macular corneal dystrophy (MCD). The aim of this study was to show whether ultrasound biomicroscopy (UBM) can, based on posterior changes of the cornea in MCD, assist in the choice of surgery, either anterior lamellar keratoplasty (DALK) or penetrating keratoplasty (PK), compared with optical coherence tomography (OCT) and Scheimpflug. METHODS: Six patients with MCD were examined for their best-corrected visual acuity, slit-lamp, OCT, UBM, and Scheimpflug findings...
October 14, 2016: Cornea
https://www.readbyqxmd.com/read/27748807/endothelial%C3%A2-like-cells-differentiated-from-mesenchymal-stem-cells-attenuate-neointimal-hyperplasia-after-vascular-injury
#13
Jianzhong Xu, Duojiao Wu, Yan Yang, Kaida Ji, Pingjin Gao
The present study investigated the contribution of bone marrow-derived mesenchymal stem cells (BM‑MSCs) to neointimal formation, and whether endothelial‑like cells (ELCs) differentiated from BM‑MSCs could attenuate intimal hyperplasia following vascular injury. BM‑MSCs were isolated from rat femurs and tibias and expanded ex vivo. Differentiation into ELCs was induced by cultivation in the presence of 50 ng/ml vascular endothelial growth factor (VEGF). MSCs and ELCs were labeled with BrdU and injected via the femoral vein on the day of a balloon‑induced carotid artery injury...
November 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27693444/appearance-of-far-peripheral-retina-in-normal-eyes-by-ultra-widefield-fluorescein-angiography
#14
Jing Lu, Guiying Mai, Yan Luo, Mei Li, Di Cao, Xiao Wang, Hong Yan, SriniVas R Sadda, Lin Lu
PURPOSE: To characterize the appearance of the far peripheral retina of normal eyes using ultra-widefield fluorescein angiography (UWFA). DESIGN: Cross-sectional study. METHODS: This study enrolled 101 eyes with best-corrected visual acuity ≥20/20, with refractive error <3.00 diopters, and without visible retinal pathologic changes under a slit lamp-based condensing lens. The far peripheral retina was detected by UWFA. Ciliary body thickness (CBT) at 3 mm (CBT1) and 2 mm (CBT2) posterior to the scleral spur was measured by ultrasound biomicroscopy...
January 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/27672593/toric-markers-assisted-implantation-of-the-scleral-fixated-intraocular-lens
#15
Hu-Ping Song, Bing-Yu Tian, Jing Peng
AIM: To evaluate the efficacy of toric intraocular lens markers-assisted implantation of the scleral-fixated intraocular lens (SFIOL). METHODS: From October 2010 to December 2013, all patients who had undergone secondary SFIOL implantation were assigned to group 1 and 2, in group 1 SFIOL was performed with the assist of radial keratotomy (RK)-marker, and in group 2 SFIOL was performed with the assisted of toric intraocular lens markers (T-and axis markers). Patients' demographic data and information on baseline preoperative visual acuity, indication for surgery and latest postoperative visual acuity were collected and analyzed...
2016: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/27672446/in-vivo-positional-analysis-of-implantable-collamer-lens-using-ultrasound-biomicroscopy
#16
Ahmed Mohamed Kamal Elshafei, Mahmoud Mohamed Genaidy, Hossam Mohamed Moharram
Purpose. To evaluate the anterior segment, the anatomical position of the implantable collamer lenses (ICL), and its relationship to adjacent ocular structures using Ultrasound Biomicroscopy (UBM). Methods. In a prospective study, 142 myopic eyes of 93 patients implanted with Visian ICL were subjected to UBM examination between March 2010 and January 2015. The relative position of ICL to the adjacent structure and the overall iris configuration were evaluated. The machine calibers were used to measure the minimum central distance between the ICL and anterior lens capsule (vault) and the vertical central distance between the corneal endothelium and the ICL (E-ICL)...
2016: Journal of Ophthalmology
https://www.readbyqxmd.com/read/27669329/ciliary-body-iris-appositioning-producing-mechanical-pupillary-defects-in-carotid-cavernous-sinus-fistula-an-overlooked-pathophysiologic-mechanism
#17
Margarita G Todorova, Cameron F Parsa
BACKGROUND: Variable pupillary responses have been described with carotid-cavernous sinus fistulas. These often are associated with a decrease in visual acuity and attributed to retinal ischemia. We propose a novel pathophysiologic mechanism for changes in pupillary reactivity involving anatomic changes secondary to choroidal effusion. METHODS: To demonstrate proof-of-concept, we investigated 2 consecutive patients with carotid-cavernous sinus fistulas and pupillary disturbances using repeated refractions and anterior segment ultrasound biomicroscopy...
September 22, 2016: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/27668501/ciliochoroidal-effusion-and-acute-macular-neuroretinopathy-associated-with-cervical-traction-therapy
#18
Vaidehi S Dedania, Devon H Ghodasra, Christine N Kay, Robert Roseman, Mark W Johnson
PURPOSE: To report an unusual case of ciliochoroidal effusion and presumed acute macular neuroretinopathy associated with cervical traction therapy for the treatment of cervical spinal stenosis. METHODS: Case report. RESULTS: A 75-year-old man reported sudden onset of a wedge-shaped paracentral scotoma in the right eye. Fundus examination showed a ciliochoroidal effusion in the right eye. Optical coherence tomography revealed intraretinal fluid in both eyes without leakage on fluorescein angiography...
September 23, 2016: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/27659350/comparison-over-time-of-vault-in-chinese-eyes-receiving-implantable-contact-lenses-with-or-without-a-central-hole
#19
Xinfang Cao, Weiliang Wu, Yang Wang, Chen Xie, Ye Shen
PURPOSE: To compare the longitudinal vault changes after implantation of a posterior chamber phakic intraocular lens (pIOL) (Visian Implantable Contact Lens) with (ICL V4c) and without (ICL V4) a central artificial hole for moderate to high myopia in Chinese eyes. DESIGN: Retrospective case series. METHODS: This study comprised 78 eyes implanted with the ICL V4c model and 82 eyes implanted with the ICL V4 model at our department by the same surgeon...
September 19, 2016: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/27646334/safety-and-efficacy-of-collagen-matrix-implantation-in-infantile-glaucoma
#20
Eman M Elhefney, Hossam T Al-Sharkawy, Hanem M Kishk, Hossam Abouelkheir
PURPOSE: To evaluate the preliminary results of biodegradable collagen matrix implant (Ologen) designed to improve outcome in patients with infantile glaucoma undergoing combined trabeculotomy and trabeculectomy. METHODS: A biodegradable collagen matrix (OculusGen) was placed in the subconjunctival space, partially over the scleral flap and the sclera in 20 eyes of 11 patients with infantile glaucoma who underwent combined trabeculotomy and trabeculectomy. Patients were examined preoperatively and on the first postoperative day with multiple postoperative follow-up visits within 12 months after surgery...
September 7, 2016: European Journal of Ophthalmology
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