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Ultrasound biomicroscopy

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https://www.readbyqxmd.com/read/29774459/possible-role-of-standardized-echography-complementing-ultrasound-biomicroscopy-in-tumors-of-the-anterior-eye-segment-a-study-in-a-series-of-13-patients
#1
B Kuzmanović Elabjer, M Bušić, D Miletić, M Bjeloš, N Vukojević, D Bosnar
PURPOSE: To evaluate the efficacy of standardized A-scan echography (ASE) complementing ultrasound biomicroscopy (UBM) to propose the most efficient method as grounds for the diagnosis, treatment, and follow-up of anterior eye-segment tumors. METHODS: The inclusion criteria were tumors of the ciliary body and peripheral choroidal tumors, whose anterior border could not be visualized with a 10 MHz ultrasound probe. The largest basal dimension and the highest prominence of the tumor were measured with a UBM Lin 50 probe...
May 17, 2018: Journal of Ultrasound
https://www.readbyqxmd.com/read/29750716/pattern-scanning-laser-pascal-for-peripheral-iridoplasty-in-eyes-with-plateau-iris-syndrome-a-novel-application
#2
Neha Midha, Kirsten Hoskens, Kaweh Mansouri
PURPOSE: To evaluate safety and efficacy of pattern scanning laser (PASCAL) for peripheral iridoplasty in eyes with plateau iris syndrome. METHODS: Retrospective review of cases that underwent PASCAL peripheral iridoplasty (PLPI). Eyes with plateau iris syndrome confirmed on gonioscopy and ultrasound biomicroscopy were included in the study. Primary and secondary outcome measures were angle widening on gonioscopy and magnitude of IOP reduction, respectively. RESULTS: Twelve eyes of 8 patients that completed one year follow-up were analyzed...
May 10, 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29743110/analysis-of-intraocular-positions-of-posterior-implantable-collamer-lens-by-full-scale-ultrasound-biomicroscopy
#3
Xi Zhang, Xun Chen, Xiaoying Wang, Fei Yuan, Xingtao Zhou
BACKGROUND: To analyze the positions of intraocular posterior Implantable Collamer Lens (ICL) and its possible relationship with vault. METHODS: This cross-sectional study included 72 patients with high myopia (134 eyes) who were followed up after phakic intraocular lens implantation. The postoperative time ranged from 1 week to 7 years. We obtained the images of ICL by using Compact Touch STS UBM and observed the position of ICL in posterior chamber and ciliary sulcus...
May 9, 2018: BMC Ophthalmology
https://www.readbyqxmd.com/read/29721842/pigment-dispersion-syndrome-and-pigmentary-glaucoma-a-review-and-update
#4
Gianluca Scuderi, Maria Teresa Contestabile, Luca Scuderi, Aloisa Librando, Vito Fenicia, Siavash Rahimi
INTRODUCTION: Potential factors influencing stereopsis were investigated in patients with both refractive accommodative esotropia (RAE) and amblyopia. Pigment dispersion syndrome (PDS) is a condition where anomalous iridozonular contact leads to pigment dispersion throughout the anterior segment and the released pigment is abnormally deposited on various ocular structures. CLINICAL PRESENTATION: The clinical presentation of PDS is defined by the presence of pigmented cells on the corneal endothelium, an increase of pigmentation of the trabecular meshwork, and mid-periphery transillumination defects of the iris...
May 2, 2018: International Ophthalmology
https://www.readbyqxmd.com/read/29703283/primary-sulcus-implantation-of-a-diffractive-multifocal-pseudophakic-piggyback-intraocular-lens
#5
Myriam Cassagne, Marie Porterie, Laurent Gauthier, Eric Chapotot, Vincent Soler, François Malecaze, Pierre Fournié
PURPOSE: To evaluate the efficacy and safety of the combined implantation of a monofocal intraocular lens (IOL) in the capsular bag with a diffractive multifocal IOL designed for sulcus placement (Reverso). SETTING: Purpan Hospital, Toulouse, and Helios Clinic, Saint-Jean-de-Luz, France. DESIGN: Prospective case series. METHODS: The multifocal IOL piggyback IOL was implanted in the sulcus during cataract surgery. Visual acuity, defocus curve, contrast sensitivity, IOL positioning, and patient satisfaction were assessed with 1-year follow-ups...
March 2018: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29698452/iridociliary-cysts-do-not-impact-on-posterior-phakic-intraocular-lens-implantation-for-high-myopia-correction-a-prospective-cohort-study-in-1569-eyes
#6
Xi Zhang, Xun Chen, Xiaoying Wang, Xingtao Zhou
PURPOSE: To investigate the clinical characters and effect of iridociliary cysts among patients who had undergone posterior phakic intraocular lens implantation. METHODS: A total 1569 eyes of 866 high myopia patients, who underwent phakic intraocular lens implantation from 1 September 2011 to 31 August 2016, was included in this prospective cohort study. These patients were followed up for more than 12 months postoperatively. RESULTS: During the study period, 218 eyes (14%) of 154 patients were diagnosed with iridociliary cysts by ultrasound biomicroscopy...
2018: PloS One
https://www.readbyqxmd.com/read/29675962/dual-wavelength-hybrid-optoacoustic-ultrasound-biomicroscopy-for-functional-imaging-of-large-scale-cerebral-vascular-networks
#7
Johannes Rebling, Héctor Estrada, Sven Gottschalk, Gali Sela, Michael Zwack, Georg Wissmeyer, Vasilis Ntziachristos, Daniel Razansky
A critical link exists between pathological changes of cerebral vasculature and diseases affecting brain function. Microscopic techniques have played an indispensable role in the study of neurovascular anatomy and functions. Yet, investigations are often hindered by sub-optimal trade-offs between the spatiotemporal resolution, field-of-view and type of contrast offered by the existing optical microscopy techniques. We present a hybrid dual-wavelength optoacoustic biomicroscope capable of rapid transcranial visualization of large-scale cerebral vascular networks...
April 19, 2018: Journal of Biophotonics
https://www.readbyqxmd.com/read/29625458/what-are-the-characteristics-of-primary-angle-closure-with-longer-axial-length
#8
Mengwei Li, Yuhong Chen, Zhenying Jiang, Xiaoxiao Chen, Junyi Chen, Xinghuai Sun
Purpose: To compare biometric parameters between primary angle closure with longer axial length (AL) and those with medium or shorter AL. Methods: We prospectively recruited 138 primary angle-closure patients. Low-coherence interferometry and ultrasound biomicroscopy examinations were performed before laser peripheral iridotomy and pilocarpine treatment. AL was categorized as shorter (<22.5 mm), medium (≥22.5 to <23.5 mm), or longer (≥23.5 mm). Anterior chamber depth and width (ACD and ACW), lens vault (LV), anterior vault (AV), relative AV (AV/AL), relative lens position (RLP, [ACD + 1/2 lens thickness]/AL), trabecular-ciliary angle (TCA), keratometry, and other biometric parameters were compared among different AL groups...
March 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29625448/anterior-choroidal-thickness-increased-in-primary-open-angle-glaucoma-and-primary-angle-closure-disease-eyes-evidenced-by-ultrasound-biomicroscopy-and-ss-oct
#9
Kai Gao, Fei Li, Yingqi Li, Xingyi Li, Wenbin Huang, Shida Chen, Yaoming Liu, Tin Aung, Xiulan Zhang
Purpose: To compare the anterior and posterior choroid thickness (ACT and PCT, respectively) in primary open-angle glaucoma (POAG), primary angle-closure disease (PACD), and healthy control subjects. Methods: A total of 29 POAG patients (56 eyes), 37 PACD patients (64 eyes), and 34 healthy volunteers (68 eyes) were enrolled in this study; 50 POAG eyes were divided into 25 early/moderate-stage and 25 advanced-stage eyes by visual field loss, while 64 PACD eyes were classified as primary angle-closure suspect (PACS), 8 eyes; primary angle closure (PAC), 18 eyes; and primary angle-closure glaucoma (PACG), 38 eyes...
March 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29613981/phacomorphic-angle-closure-following-silicone-oil-tamponade-in-a-pediatric-patient
#10
Victoria C Leung, Simon Fung, Rajeev Muni, Asim Ali
PURPOSE: To report a case of phacomorphic glaucoma following retinal detachment repair with silicone oil in a pediatric patient. STUDY DESIGN: Case report. METHODS: A chart review was conducted at St. Michael's Hospital and The Hospital for Sick Children (Toronto, Canada), where the patient received ophthalmic care from July 28, 2015 onwards. RESULTS: A 14 year-old boy with a history of traumatic retinal detachment and proliferative vitreoretinopathy in the left eye, requiring two pars plana vitrectomies, membrane peel, and silicone oil tamponade, presented with one-day history of decreased vision in the left eye, severe headache, nausea, and vomiting...
April 2, 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29609595/capture-of-intraocular-lens-optic-by-residual-capsular-opening-in-secondary-implantation-long-term-follow-up
#11
Tian Tian, Chunli Chen, Haiying Jin, Lyu Jiao, Qi Zhang, Peiquan Zhao
BACKGROUND: To introduce a novel surgical technique for optic capture by residual capsular opening in secondary intraocular lens (IOL) implantation and to report the outcomes of a long follow-up. METHODS: Twenty patients (20 eyes) who had received secondary IOL implantation with the optic capture technique were retrospectively reviewed. We used the residual capsular opening for capturing the optic and inserted the haptics in the sulcus during surgery. Baseline clinical characteristics and surgical outcomes, including best-corrected visual acuity (BCVA), refractive status, and IOL position were recorded...
April 2, 2018: BMC Ophthalmology
https://www.readbyqxmd.com/read/29557836/glaucoma-with-crouzon-syndrome
#12
Abdulaziz Anazi Alshamrani, Sami Al-Shahwan
BACKGROUND: Crouzon syndrome is the most common form of craniosynostosis, and mutations in the fibroblast growth factor receptor 2 and 3 (FGFR2 and FGFR3) genes are implicated in its pathogenesis. OBSERVATION: A 10-year-old female patient with Crouzon syndrome and congenital glaucoma treated with trabeculectomy and ocular hypotensive medications was examined. The patient had proptosis, exposure keratopathy, megalocornea, thin central corneal thickness, a shallow anterior chamber, mild anterior subcapsular cataract, and a cup-to-disc ratio of 0...
March 19, 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29516316/anterior-segment-ultrasound-biomicroscopy-image-analysis-using-imagej-software-intra-observer-repeatability-and-inter-observer-agreement
#13
Azam Qureshi, Haoxing Chen, Osamah Saeedi, Mona A Kaleem, Gianna Stoleru, Jordan Margo, Sachin Kalarn, Janet L Alexander
PURPOSE: In this novel study, we demonstrate a standardized imaging and measurement protocol of anterior segment (AS) structures with reliability analysis using ultrasound biomicroscopy (UBM) and ImageJ software. METHODS: Ten pediatric and young adult patients undergoing examination under anesthesia for AS pathology were imaged using UBM. Four trained observers analyzed 20 images using ImageJ. Forty-five structural parameters were measured. Those that relied on the trabecular-iris angle (TIA) as a reference landmark were labeled TIA-dependent (TD) and all others were labeled non-TIA dependent (NTD)...
March 7, 2018: International Ophthalmology
https://www.readbyqxmd.com/read/29503954/mucogenic-glaucoma-in-a-child
#14
Ta C Chang, Linda Y Huang, Kara M Cavuoto
Purpose: We describe a case of secondary open-angle glaucoma due to mucin-producing congenital iris stromal cyst in a 4 year old patient. Observations: A 4-year old female patient with a history of unilateral congenital iris stromal cyst presented with sudden-onset eye pain and redness, with markedly elevated intraocular pressure and evidence of early optic nerve damage. During the examination under anesthesia, the anterior chamber angle was open and there was no evidence of pupillary block...
April 2017: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29500812/acute-ocular-pain-during-magnetic-resonance-imaging-due-to-retained-intraocular-metallic-foreign-body-the-role-of-ultrasonography-and-ultrasound-biomicroscopy-in-diagnosis-and-management-of-this-condition
#15
REVIEW
Nikolaos Mamas, Konstantinos Andreanos, Dimitrios Brouzas, Andreas Diagourtas, Andreas Droulias, Ilias Georgalas, Dimitrios Papaconstantinou
PURPOSE: To report the case of a 65-year-old metalworker with no known history of ocular trauma, who suffered from intense ocular pain during magnetic resonance imaging (MRI) of the brain, due to a retained intraocular metallic foreign body (IOFB). CASE REPORT: Meticulous ophthalmological examination was inconclusive. An IOFB was confirmed with X-ray scan, whereas its exact localization was enabled by means of ultrasonography and ultrasound biomicroscopy (UBM). CONCLUSIONS: Despite appropriate screening protocols, MRI-related ocular complications might occur in the presence of a hidden metallic IOFB...
March 2, 2018: Journal of Ultrasound
https://www.readbyqxmd.com/read/29499628/in-vivo-inhibition-of-nuclear-factor-of-activated-t-cells-leads-to-atherosclerotic-plaque-regression-in-igf-ii-ldlr-apob-100-100-mice
#16
Fabiana Blanco, Suvi E Heinonen, Erika Gurzeler, Lisa M Berglund, Anna-Maria Dutius Andersson, Olga Kotova, Ann-Cathrine Jönsson-Rylander, Seppo Ylä-Herttuala, Maria F Gomez
AIMS: Despite vast clinical experience linking diabetes and atherosclerosis, the molecular mechanisms leading to accelerated vascular damage are still unclear. Here, we investigated the effects of nuclear factor of activated T-cells inhibition on plaque burden in a novel mouse model of type 2 diabetes that better replicates human disease. METHODS & RESULTS: IGF-II/LDLR-/- ApoB100/100 mice were generated by crossbreeding low-density lipoprotein receptor-deficient mice that synthesize only apolipoprotein B100 (LDLR-/- ApoB100/100 ) with transgenic mice overexpressing insulin-like growth factor-II in pancreatic β cells...
March 1, 2018: Diabetes & Vascular Disease Research
https://www.readbyqxmd.com/read/29491485/difference-of-uveal-parameters-between-the-acute-primary-angle-closure-eyes-and-the-fellow-eyes
#17
Xingyi Li, Wei Wang, Wenbin Huang, Shida Chen, Jiawei Wang, Zhonghao Wang, Yaoming Liu, Mingguang He, Xiulan Zhang
PURPOSE: To measure the anterior and posterior ocular biometric characteristics concurrently and to explore the relationship between iris, ciliary body and choroid in acute primary angle closure eyes (APAC) and fellow eyes. METHODS: It is a prospective, cross-sectional study. Thirty patients with recent APAC were finally enroled in it. Anterior and posterior uveal parameters were measured simultaneously by anterior segment optical coherence tomography (AS-OCT), swept-source optical coherence tomography (SS-OCT) and ultrasound biomicroscopy (UBM)...
March 1, 2018: Eye
https://www.readbyqxmd.com/read/29487814/functional-evaluation-of-the-filtering-bleb-by-ultrasound-biomicroscopy-after-trabeculectomy-with-mitomycin-c
#18
Ali Abbas El Salhy, Rabab Mohamed Elseht, Ahmed Fekry Al Maria, Saied Mohamed Abd El-Wahab Shalaby, Tarek Ragaee Hossein
AIM: To study the role of ultrasound biomicroscopy (UBM) in the assessment of the bleb function after trabeculectomy with mitomycin C (MMC). METHODS: This was a cross-sectional study including all cases had undergone trabeculectomy with MMC 0.2 mg/mL for 3min. Participants were recruited from the follow-up cases at Department of Ophthalmology, Tanta University in the period from August 2015 to August 2016. Full history taking and ophthalmological examination were performed...
2018: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29482864/laser-peripheral-iridotomy-in-primary-angle-closure-a-report-by-the-american-academy-of-ophthalmology
#19
Sunita Radhakrishnan, Philip P Chen, Anna K Junk, Kouros Nouri-Mahdavi, Teresa C Chen
PURPOSE: To examine the efficacy and complications of laser peripheral iridotomy (LPI) in subjects with primary angle closure (PAC). METHODS: Literature searches in the PubMed and Cochrane databases were last conducted in August 2017 and yielded 300 unique citations. Of these, 36 met the inclusion criteria and were rated according to the strength of evidence; 6 articles were rated level I, 11 articles were rated level II, and 19 articles were rated level III. RESULTS: Reported outcomes were change in angle width, effect on intraocular pressure (IOP) control, disease progression, and complications...
February 23, 2018: Ophthalmology
https://www.readbyqxmd.com/read/29480247/ultrasound-biomicroscopy-image-patterns-in-normal-upper-eyelid-and-congenital-ptosis-in-the-indian-population
#20
Abhidnya Surve, Rachna Meel, Neelam Pushker, M S Bajaj
Purpose: To study the features of upper eyelid in healthy individual and different types of congenital ptosis in the Indian population using ultrasound biomicroscopy (UBM). Methods: This was a prospective observational study at a tertiary care center. Eyelid structure of healthy individuals with no eyelid abnormalities (n = 19); simple congenital ptosis (n = 33) cases; Marcus Gunn jaw-winking ptosis (MGJWP, n = 7) cases, and blepharophimosis-ptosis-epicanthus inversus syndrome (BPES, n = 20) cases were studied on a vertical UBM scan using 50-MHz probe...
March 2018: Indian Journal of Ophthalmology
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