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Ultrasound biomicroscopy

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https://www.readbyqxmd.com/read/28631430/internal-cyclopexy-for-complicated-traumatic-cyclodialysis-cleft
#1
Cong Wang, Xiao-Yan Peng, Qi-Sheng You, Yi Liu, Xiu-Qin Pang, Peng-Fei Zheng, Jost B Jonas
PURPOSE: To assess the surgical and functional outcome of internal direct cyclopexy as therapy of complicated traumatic cyclodialysis. METHODS: The single-centre interventional case-series study included eyes with traumatic cyclodialysis who had consecutively been treated. Internal cyclopexy was performed using double-armed sutures introduced into the eye through the pars plana opposite to the cyclodialysis cleft and which were laid parallel to limbus. Additional procedures included cataract surgery, and pars plana vitrectomy...
June 20, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28622042/the-relationship-between-the-24-hour-fluctuations-in-schlemm-s-canal-and-intraocular-pressure-an-observational-study-using-high-frequency-ultrasound-biomicroscopy
#2
Mu Li, Yin Zhao, Xiaoqin Yan, Hong Zhang
PURPOSE: To assess 24-hour fluctuations in Schlemm's canal (SC) parameters (cross-sectional area, perimeter) and intraocular pressure (IOP) and the relationship between these fluctuations in healthy individuals. METHODS: SC and IOP were examined in 29 participants at 2:30, 5:30, 11:30, 17:30, and 23:30 within one day. The superior, inferior, nasal, and temporal SC quadrants were evaluated using 80-MHz ultrasound biomicroscopy. RESULTS: SC parameters and IOP fluctuated significantly within 24 hours (all P < 0...
June 16, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28619691/a-mouse-model-of-antepartum-stillbirth
#3
Anum Rahman, Lindsay S Cahill, Yu-Qing Zhou, Johnathan Hoggarth, Monique Y Rennie, Mike Seed, Christopher K Macgowan, John C Kingdom, S Lee Adamson, John G Sled
BACKGROUND: Many stillbirths of normally-formed fetuses in the third trimester could be prevented via delivery if reliable means to anticipate this outcome existed. However, since the etiology of these stillbirths is often unexplained and, although the underlying mechanism is presumed to be hypoxia from "placental insufficiency", the placentas often appear normal on histopathologic examination. Gestational age is a risk factor for antepartum stillbirth, with a rapid rise in stillbirth rates after 40 weeks gestation...
June 12, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28613427/clinical-anatomy-of-the-anterior-chamber-angle-in-congenital-aniridia-and-consequences-for-trabeculotomy-cyclophotocoagulation
#4
Arne Viestenz, Berthold Seitz, Eva Deland, Miltiadis Fiorentzis, Lorenz Latta, Anja Viestenz, Barbara Käsmann-Kellner
INTRODUCTION: Intraocular pressure (IOP) lowering surgery in congenital aniridia glaucoma (CAG) can be complicated by dysgenesis of the limbal region, anterior chamber angle, iris and lens. METHODS: The anterior segments of 23 eyes (17 patients) with congenital aniridia were investigated under general anesthesia using ultrasound biomicroscopy (UBM). The structures of the anterior segment were examined: distance of ciliary body processes from the anterior chamber angle and positioning of Schlemm's canal...
June 14, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28602325/pigment-dispersion-syndrome-and%C3%A2-pigmentary-glaucoma-after-secondary-sulcus-transscleral-fixation-of-single-piece-foldable%C3%A2-posterior-chamber-intraocular-lenses%C3%A2-in%C3%A2-chinese-aphakic-patients
#5
Nianting Tong, Fuling Liu, Ting Zhang, Liangyu Wang, Zhanyu Zhou, Huimin Gong, Fuxiang Yuan
PURPOSE: To describe secondary pigment dispersion syndrome (PDS) and pigmentary glaucoma after secondary sulcus transscleral fixation of 1-piece hydrophobic acrylic foldable posterior chamber intraocular lenses (PC IOLs) in aphakic patients in a Chinese population. SETTING: Department of Ophthalmology, Qingdao Municipal Hospital, Qingdao, China. DESIGN: Retrospective case series. METHODS: This chart review included eyes that had secondary sulcus transscleral fixation of a 1-piece hydrophobic acrylic foldable PC IOL (Tecnis ZCB00) between March 2011 and March 2014...
May 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28532619/traumatic-cyclodialysis-treated-with-transscleral-ciclodiode-laser-anterior-and-posterior-segment-evolution
#6
J González-Martín-Moro, M Castro-Rebollo, J Zarallo-Gallardo, F J Muñoz-Negrete
CASE REPORT: A 35-year-old man suffered a severe hipotension maculopathy after being kicked in his left eye. He presented a broad area of iridodialisis. Gonioscopy, ultrasound biomicroscopy and optic coherence tomography were not able to locate the suspected cyclodialysis. Medical treatment was ineffective. Five months later the patient received transcleral diode laser cyclophotocoagulation with clinical resolution. DISCUSSION: Transscleral diode laser constitutes an effective treatment, with low iatrogenia, that can solve cases of ocular hypotension, even when the location of the cyclodialysis has not been determined...
May 19, 2017: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/28527653/ultrasound-biomicroscopy-measurement-of-schlemm-s-canal-in-pediatric-patients-with-and-without-glaucoma
#7
Anika Tandon, Caroline Watson, Ramesh Ayyala
PURPOSE: To compare the diameter of Schlemm's canal in children with and without congenital glaucoma as measured in vivo by means of ultrasound biomicroscopy. METHODS: In this prospective single-center study of pediatric subjects (<18 years of age) the diameter of Schlemm's canal in nonglaucomatous and glaucomatous eyes was compared. An 80 MHz iUltrasound probe (iScience Interventional Inc, Menlo Park, CA) placed near the limbus was used to identify and measure the canal's diameter with special attention to the anterior segment anatomy (especially in subjects with congenital glaucoma)...
May 18, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28515637/ultrasound-biomicroscopy-value-in-evaluation-of-restoration-of-ciliary-muscles-contractility-after-cataract-extraction
#8
Ayser Abd El-Hameed Fayed
PURPOSE: To assess the changes in the contractility of the ciliary muscle in eyes with presbyopia before and after phacoemulsification and intracapsular lens implantation using ultrasound biomicroscopy (UBM). PATIENTS AND METHODS: This prospective study included 50 eyes of 30 consecutive subjects operated at the Department of Ophthalmology. Patients with any ocular disorder affecting visual acuity, corneal surface irregularities, had posterior capsular perforation or intensive postoperative corneal edema, or were <35 years of age, were excluded...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28493087/ciliary-body-thickness-changes-after-preoperative-anti-inflammatory-treatment-in-rhegmatogenous-retinal-detachment-complicated-by-choroidal-detachment
#9
Yassine Alibet, Galyna Levytska, Nicolay Umanets, Natalya Pasyechnikova, Paul B Henrich
BACKGROUND: The literature is scant on the state of the ciliary body, its role in the development of rhegmatogenous retinal detachment (RRD) complicated by choroidal detachment (CD), and on ciliary body changes following the treatment aimed at resolving concomitant inflammation and choroidal attachment. This study assesses the anatomical position and thickness of the ciliary body and investigates the ciliary body changes after anti-inflammatory pre-vitrectomy treatment in RRD complicated by CD...
May 10, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28487752/brachytherapy-and-anterior-segment-imaging-in-iris-melanoma
#10
Jin Soo Andy Song, Adam A Dmytriw, Hesham Lakosha
A 40-year-old male presented to the ophthalmology clinic with a darkly pigmented infratemporal lesion in his right eye. The corrected visual acuity in both eyes was 6/6 and both pupils were equal and reactive. Slit lamp biomicroscopy showed a well-demarcated and heavily pigmented lesion in the peripheral iris between 6 and 8 o'clock. Ultrasound biomicroscopy (UBM) revealed a solid mass deriving from the iris stroma without ciliary body involvement, helping to classify the uveal melanoma and establishing the diagnosis of iris melanoma...
2017: Ecancermedicalscience
https://www.readbyqxmd.com/read/28471103/measurement-of-angle-kappa-using-ultrasound-biomicroscopy-and-corneal-topography
#11
Joon Hyung Yeo, Nam Ju Moon, Jeong Kyu Lee
PURPOSE: To introduce a new convenient and accurate method to measure the angle kappa using ultrasound biomicroscopy (UBM) and corneal topography. METHODS: Data from 42 eyes (13 males and 29 females) were analyzed in this study. The angle kappa was measured using Orbscan II and calculated with UBM and corneal topography. The angle kappa of the dominant eye was compared with measurements by Orbscan II. RESULTS: The mean patient age was 36.4 ± 13...
April 24, 2017: Korean Journal of Ophthalmology: KJO
https://www.readbyqxmd.com/read/28470658/-free-floating-intraocular-cysts
#12
Jens Ulrich Werner, Gerhard K Lang, Christian Enders
Background Free-floating intraocular cysts may be found in the anterior chamber (FZV) and the vitreous (FZG). The first description of a cyst was 150 years ago, and they are considered to be ocular rarities. Materials and Methods The actual knowledge about FZV and FZG is shown on the basis of two exemplary patients. Results and Discussion Patient 1 had a FZV as an incidental finding which had a smooth surface, a slight pigmentation and was translucent. The ultrasound biomicroscopy revealed an echo-free interior space...
May 3, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28455286/ultrasound-biomicroscopy-validation-of-a-murine-model-of-cardiac-hypertrophic-preconditioning-comparison-with-a-hemodynamic-assessment
#13
Jiayuan Huang, Jian Wu, Shijun Wang, Jieyun You, Yong Ye, Zhiwen Ding, Fenghua Yang, Xingxu Wang, Junjie Guo, Leilei Ma, Jie Yuan, Yunli Shen, Xiangdong Yang, Aijun Sun, Hong Jiang, Liping Bu, Peter H Backx, Junbo Ge, Yunzeng Zou
In mice, myocardial hypertrophic preconditioning (HP), which is produced by the removal of short-term transverse aortic constriction (TAC), was recently reported to render the heart resistant to hypertrophic responses induced by subsequent re-constriction (Re-TAC). However, there is no efficient non-invasive method for ensuring that the repeated aortic manipulations were successfully performed. We previously demonstrated that ultrasound biomicroscopy (UBM) is a non-invasive and effective approach for predicting TAC success...
April 28, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28440316/modest-and-severe-maternal-iron-deficiency-in-pregnancy-are-associated-with-fetal-anaemia-and-organ-specific-hypoxia-in-rats
#14
Andrew G Woodman, Alison S Care, Yael Mansour, Stephana J Cherak, Sareh Panahi, Ferrante S Gragasin, Stephane L Bourque
Prenatal iron-deficiency (ID) is known to alter fetal developmental trajectories, which predisposes the offspring to chronic disease in later life, although the underlying mechanisms remain unclear. Here, we sought to determine whether varying degrees of maternal anaemia could induce organ-specific patterns of hypoxia in the fetuses. Pregnant female Sprague Dawley rats were fed iron-restricted or iron-replete diets to induce a state of moderate (M-ID) or severe ID (S-ID) alongside respective controls. Ultrasound biomicroscopy was performed on gestational day (GD)20 to assess uterine and umbilical artery blood flow patterns...
April 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28440260/immortal-ozurdex-a-10-month-follow-up-of-an-intralenticular-implant
#15
B Poornachandra, Vinod B M Kumar, Chaitra Jayadev, Subashchandra H Dorelli, Naresh Kumar Yadav, Rohit Shetty
A 78-year-old male who had received a dexamethasone implant (Ozurdex, Allergan, Inc., Irvine, CA, USA) 15 days back for recalcitrant diabetic macular edema in the left eye came to us for a second opinion. On examination, his corrected distance visual acuity was 20/20 in the right eye and 20/40 in the left eye. Early cataractous changes were present in both eyes. The intraocular pressure was within normal limits. The Ozurdex implant was seen lodged in the posterior cortex of the crystalline lens in the left eye, confirmed on anterior segment optical coherence tomography (OCT) and ultrasound biomicroscopy...
March 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28440257/managing-multiple-caterpillar-hair-in-the-eye
#16
Manisha Agarwal, Manisha C Acharya, Shahana Majumdar, Lagan Paul
Ophthalmia nodosa with vitreoretinal involvement is rare and may cause permanent loss of eye due to persistent inflammation of the eye. A young female patient having multiple caterpillar hair in the eye including cornea, anterior chamber, sclera, and pars plana presented with recurrent vitritis and pars planitis. Ultrasound biomicroscopy played a vital role and helped in localizing the hair embedded in the pars plana region which were managed by pars plana vitrectomy leading to complete recovery.
March 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28440249/innovations-in-pediatric-cataract-surgery
#17
Sudarshan Kumar Khokhar, Ganesh Pillay, Esha Agarwal, Manish Mahabir
Advances in technology have made surgery in children safer and faster. The management of pediatric cataract has made rapid progress in the past decade with the availability of safer anesthesia, newer technique's, more predictable intraocular lens (IOL) power calculation, a better understanding of neurobiology, genetics, amblyopia management, improved IOL designs for preventing visual axis opacification, and adjuvant postoperative care. Modern vitrectomy machines with minimally invasive instruments, radiofrequency, diathermy, and plasma blades help immensely in complicated cases...
March 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28428970/changes-in-anterior-segment-parameters-following-pars-plana-vitrectomy-measured-by-ultrasound-biomicroscopy-ubm
#18
Zahra Ghomi, Fariba Ghassemi
Despite being a posterior segment ocular surgery, pars plana vitrectomy (PPV) may also affect anterior segment parameters. We aimed to investigate anterior segment alterations following PPV using ultrasound biomicroscopy (UBM) to visualize the structural anatomy of the eye. In this study, we enrolled phakic patients undergoing PPV (as the sole procedure). The anterior chamber depth, crystalline lens anterior-posterior (AP) diameter, anterior chamber angle, ciliary body dimensions, and integrity of the ciliary zonules and posterior capsule were assessed using UBM before and at least 3 months after PPV...
2017: Medical Hypothesis, Discovery and Innovation in Ophthalmology
https://www.readbyqxmd.com/read/28393032/uveal-effusion-following-acute-primary-angle-closure-a-retrospective-case-series
#19
Jian-Gang Yang, Jian-Jun Li, Hua Tian, Yan-Hong Li, Yu-Jing Gong, An-Le Su, Na He
AIM: To evaluate the morphological changes in anterior segment in Chinese patients with uveal effusion (UE) after the attack of acute primary angle-closure (APAC) using ultrasound biomicroscopy (UBM), and to assess the clinical course and prognosis of the disease. METHODS: In a retrospective case series, 26 eyes in 26 consecutive patients diagnosed with UE after the treatment of intraocular pressure (IOP)-lowering medication for the attack of APAC were enrolled...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28385302/subclassification-of-primary-angle-closure-using-anterior-segment-optical-coherence-tomography-and-ultrasound-biomicroscopic-parameters
#20
Junki Kwon, Kyung Rim Sung, Seungbong Han, Ye Ji Moon, Joong Won Shin
PURPOSE: To classify eyes with primary angle closure (PAC) in terms of the features visualized using anterior segment optical coherence tomography (AS-OCT) and ultrasound biomicroscopy (UBM). DESIGN: Retrospective, observational study. PARTICIPANTS: A total of 73 eyes of 73 patients with PAC. METHODS: Participants' eyes that had undergone laser peripheral iridotomy (LPI) were imaged using AS-OCT and UBM under the same lighting conditions...
April 3, 2017: Ophthalmology
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