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https://www.readbyqxmd.com/read/29207745/bilateral-persistent-hyperplastic-primary-vitreous-a-rare-case-report
#1
Rashmi Kumari, Bhawesh Chandra Saha
Persistent Hyperplastic Primary Vitreous (PHPV), now-a-days referred to as Persistent Fetal Vasculature (PFV), is a rare congenital anomaly of the eye that typically presents unilaterally with white pupillary reflex and microphthalmia without systemic associations. Bilateral presentations are rare. Here we report a case of 15-year-old male with bilateral PFV without leucokoria who was misdiagnosed as congenital esotropia with amblyopia, treated for refractive errors and referred to higher centre for squint corrections...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29156469/-efficacy-of-vertical-muscle-transpositions-with-and-without-simultaneous-rectus-muscle-recession-for-unilateral-sixth-nerve-palsy
#2
Andrea M Hedergott, Dana Wild, Julia Fricke, Antje Neugebauer
Background We report results of a modified vertical muscle transposition procedure according to the Hummelsheim principle - with and without simultaneous rectus muscle recession - for unilateral sixth nerve palsy. We examine the influence of the duration of the palsy, preoperative angle of squint and preoperative abductive capacity on surgical results of the procedures. Patients and Methods Retrospective study of 29 consecutive patients with unilateral abducens nerve palsy who underwent surgery between 2001 and 2012...
November 20, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/29140250/gdf3-is-required-for-robust-nodal-signaling-during-germ-layer-formation-and-left-right-patterning
#3
Jose L Pelliccia, Granton A Jindal, Rebecca D Burdine
Vertebrate embryonic patterning depends on signaling from Nodal, a TGFβ superfamily member. There are three Nodal orthologs in zebrafish; southpaw directs left-right asymmetries, while squint and cyclops function earlier to pattern mesendoderm. TGFβ member Vg1 is implicated in mesoderm formation but the role of the zebrafish ortholog, Growth differentiation factor 3 (Gdf3), has not been fully explored. We show that zygotic expression of gdf3 is dispensable for embryonic development, while maternally deposited gdf3 is required for mesendoderm formation and dorsal-ventral patterning...
November 15, 2017: ELife
https://www.readbyqxmd.com/read/29112151/generalized-nonlinear-chirp-scaling-algorithm-for-high-resolution-highly-squint-sar-imaging
#4
Tianzhu Yi, Zhihua He, Feng He, Zhen Dong, Manqing Wu
This paper presents a modified approach for high-resolution, highly squint synthetic aperture radar (SAR) data processing. Several nonlinear chirp scaling (NLCS) algorithms have been proposed to solve the azimuth variance of the frequency modulation rates that are caused by the linear range walk correction (LRWC). However, the azimuth depth of focusing (ADOF) is not handled well by these algorithms. The generalized nonlinear chirp scaling (GNLCS) algorithm that is proposed in this paper uses the method of series reverse (MSR) to improve the ADOF and focusing precision...
November 7, 2017: Sensors
https://www.readbyqxmd.com/read/29082121/bilateral-posterior-crystalline-lens-dislocations-in-an-otherwise-healthy-child
#5
Omar A AlShehri, Hashem Almarzouki, Badr A Alharbi, Mohammed Alqahtani, Khaled Allam
Introduction: Ectopia lentis is defined as a crystalline lens displacement, either partially or completely, due to zonular abnormalities. It can be a result of trauma, hereditary ocular disease, or part of systemic diseases, like Marfan syndrome and homocystinuria. Case description: We report a case of a medically free 16-year-old girl, who was referred to our hospital complaining of poor vision and a squint in both eyes since childhood. Her history included a traffic accident when she was one-year-old. She was previously diagnosed with alternating esotropia, which was treated with glasses, alternating patching, and bilateral Botox injections...
2017: GMS Ophthalmology Cases
https://www.readbyqxmd.com/read/29059375/translational-co-regulation-of-a-ligand-and-inhibitor-by-a-conserved-rna-element
#6
Andreas Zaucker, Agnieszka Nagorska, Pooja Kumari, Nikolai Hecker, Yin Wang, Sizhou Huang, Ledean Cooper, Lavanya Sivashanmugam, Shruthi VijayKumar, Jan Brosens, Jan Gorodkin, Karuna Sampath
In many organisms, transcriptional and post-transcriptional regulation of components of pathways or processes has been reported. However, to date, there are few reports of translational co-regulation of multiple components of a developmental signaling pathway. Here, we show that an RNA element which we previously identified as a dorsal localization element (DLE) in the 3'UTR of zebrafish nodal-related1/squint (ndr1/sqt) ligand mRNA, is shared by the related ligand nodal-related2/cyclops (ndr2/cyc) and the nodal inhibitors, lefty1 (lft1) and lefty2 mRNAs...
October 20, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28988187/changes-in-uk-ophthalmology-surgical-training-analysis-of-cumulative-surgical-experience-2009-2015
#7
Jeremy Hoffman, Fiona Spencer, Daniel Ezra, Alexander C Day
OBJECTIVE: To investigate changes in the patterns of cumulative surgical experience for ophthalmologists in the UK following the introduction of a new national training scheme. DESIGN: Retrospective review of all surgical training records submitted to the UK Royal College of Ophthalmologists by trainees for the award of Certificate of Completion of Training (CCT) for the period 2009-2015. SETTING: Secondary level care, UK. PARTICIPANTS: 539 trainees achieving CCT over the 7-year study period...
October 6, 2017: BMJ Open
https://www.readbyqxmd.com/read/28961094/digital-magnifying-glasses-for-low-vision-learners-bringing-assistive-technologies-to-the-developing-world
#8
Nevan C Hanumara, Jaya Narain, Amos Winter
A student squinting to see the board or holding a textbook inches from his or her nose often provides the first indication of a visual impairment. For most, the cause is a refractive error, readily correctible with eyeglasses. However, for an estimated 40-65 million people globally with functional low vision, the fuzzy words pose a lifelong challenge.
September 2017: IEEE Pulse
https://www.readbyqxmd.com/read/28944240/novel-compound-heterozygous-mutations-in-telo2-in-a-patient-with-severe-expression-of-you-hoover-fong-syndrome
#9
Shahida Moosa, Janine Altmüller, Troels Lyngbye, Rikke Christensen, Yun Li, Peter Nürnberg, Gökhan Yigit, Ida Vogel, Bernd Wollnik
BACKGROUND: Very recently, compound heterozygous loss-of-function mutations in TELO2 were shown to underlie the newly-described You-Hoover-Fong syndrome. TELO2 forms part of the co-chaperone triple T complex (TTT complex), which plays an important role in the maturation and stabilization of the phosphatidylinositol 3-kinase-related protein kinases (PIKKs). Patients with mutations in TELO2 present with microcephaly and associated intellectual disability, postnatal growth retardation and dysmorphic features...
September 2017: Molecular Genetics & Genomic Medicine
https://www.readbyqxmd.com/read/28904567/intermittent-divergent-squint-in-prematurity-and-its-neurophysiological-aspects
#10
REVIEW
Kalpana Sharma, Praveen Panwar, Kulbhushan Prakash Chaudhary
Intermittent distance exotropia is a deviation characterized by an exophoria at near fixation and manifest exotropia at distance fixation. There is normal binocular fusional vergence and stereoacuity at near fixation, but the eyes tend to diverge in bright sunlight, tiredness, day dreaming and the patient may close one eye in such circumstances. Prematurity is associated with numerous eye pathology, besides retinopathy of prematurity, amblyopia, refractive errors, it is also associated with a higher risk esotropia and exotropia...
April 2017: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/28804647/y-split-recession-of-the-medial-rectus-muscle-as-a-secondary-and-or-unilateral-procedure-in-the-treatment-of-esotropia-with-distance-near-disparity
#11
Monika Wipf, Siegfried Priglinger, Anja Palmowski-Wolfe
INTRODUCTION: In esotropia with larger angles > near than at distance, splitting of the medial rectus muscle has been suggested as a treatment option. Previous reports of bilateral medial rectus Y-splitting as a first intervention showed a reduction of the distance/near disparity with fewer side effects compared to posterior fixation surgery. We address whether a medial rectus Y-splitting as a secondary and/or a unilateral procedure also reduce distance/near disparity. MATERIALS AND METHODS: We retrospectively reviewed the charts of four patients undergoing Y-split recession as a second and/or unilateral surgery...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28757547/high-temporal-resolution-high-spatial-resolution-spaceborne-sar-based-on-continuously-varying-prf
#12
Zhirong Men, Pengbo Wang, Chunsheng Li, Jie Chen, Wei Liu, Yue Fang
Synthetic Aperture Radar (SAR) is a well-established and powerful imaging technique for acquiring high-spatial-resolution images of the Earth's surface. With the development of beam steering techniques, sliding spotlight and staring spotlight modes have been employed to support high-spatial-resolution applications. In addition to this strengthened high-spatial-resolution and wide-swath capability, high-temporal-resolution (short repeat-observation interval) represents a key capability for numerous applications...
July 25, 2017: Sensors
https://www.readbyqxmd.com/read/28692503/acquired-adult-onset-cyclic-esotropia-in-patients-with-myopic-strabismus-fixus-and-intraocular-lens-implantation
#13
Jianhua Yan, Yun Wen
PURPOSE/BACKGROUND: Cyclic esotropia is a rare condition that mostly occurs in children, characterized by patterns of straight and strabismic days with a regular cycle of 24 to 96 hours. In this report, 2 patients of cyclic esotropia in adults who showed a regular 48-hour cycle of mild deviation on 1 day followed by a more severe deviation on the second day are presented. METHODS: Clinical reports, clinical features, imaging findings, and surgical outcomes are presented...
September 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28643716/prevalence-of-ocular-morbidity-in-school-going-children-in-west-uttar-pradesh
#14
MULTICENTER STUDY
Veer Singh, K P S Malik, V K Malik, Kirti Jain
AIM OF THE STUDY: This study aims to evaluate the prevalence and to make a comparison between the ocular morbidity pattern in school going children of urban and rural areas of West Uttar Pradesh. MATERIALS AND METHODS: A school-based cross-sectional study design was adopted to examine children aged 5-15 years in randomly selected urban and rural schools of West Uttar Pradesh from June 2012 to August 2014. An optometrist did the vision and refraction, and a detailed ophthalmic examination was done by an ophthalmologist...
June 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28607792/a-constellation-of-rare-findings-in-a-case-of-goldenhar-syndrome
#15
Mitesh Bedi, Rakesh Kumar Jain, Vipin Kumar Barala, Abhimanyu Singh, Hiranmayi Jha
An 18-month-old child presented with right macrostomia, bilateral preauricular skin tags, bilateral CTEV, squint in bilateral eyes, thoracic vertebral anomalies, right sided aortic arch, and associated left pulmonary agenesis. The patient did not have any associated respiratory symptoms. Ipsilateral pulmonary agenesis is considered as a rare association with Goldenhar syndrome and a case of contralateral pulmonary aplasia has been described as an even rarer association.
2017: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/28574739/binocular-vision-and-squint-part-2
#16
Isolde den Tonkelaar, Harold H Henkes, Gijsbert K van Leersum
No abstract text is available yet for this article.
June 2, 2017: Strabismus
https://www.readbyqxmd.com/read/28573996/ridge-at-the-medial-rectus-muscle-insertion-a-new-anatomical-landmark
#17
Jitendra Jethani, Monika Jethani, Sonal Amin
BACKGROUND AND AIM: Rectus muscle insertions are usually linear or slight curved with the anterior convexity. While operating squint surgeries, we found a presence of ridge-like structure at the medial rectus insertion. None of the other rectus muscle insertions had such structure. MATERIALS AND METHODS: Patients undergoing squint surgery were included in the study. All the patients had negative forced duction test for all the gazes and had comitant strabismus. The patients underwent surgery through the fornix route...
May 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28486658/a-high-coverage-draft-genome-of-the-mycalesine-butterfly-bicyclus-anynana
#18
Reuben W Nowell, Ben Elsworth, Vicencio Oostra, Bas J Zwaan, Christopher W Wheat, Marjo Saastamoinen, Ilik J Saccheri, Arjen E Van't Hof, Bethany R Wasik, Heidi Connahs, Muhammad L Aslam, Sujai Kumar, Richard J Challis, Antónia Monteiro, Paul M Brakefield, Mark Blaxter
The mycalesine butterfly Bicyclus anynana, the "Squinting bush brown," is a model organism in the study of lepidopteran ecology, development, and evolution. Here, we present a draft genome sequence for B. anynana to serve as a genomics resource for current and future studies of this important model species. Seven libraries with insert sizes ranging from 350 bp to 20 kb were constructed using DNA from an inbred female and sequenced using both Illumina and PacBio technology; 128 Gb of raw Illumina data was filtered to 124 Gb and assembled to a final size of 475 Mb (∼×260 assembly coverage)...
July 1, 2017: GigaScience
https://www.readbyqxmd.com/read/28364339/characteristics-of-orbital-lymphoma-a-clinicopathological-study-of-26-cases
#19
Daniel Briscoe, Christine Safieh, Yokrat Ton, Hava Shapiro, Ehud I Assia, Dvora Kidron
OBJECTIVE: Evaluation of the medical data of patients with orbital and adnexal lymphoma. DESIGN: Cohort study of all cases diagnosed with orbital or adnexal lymphoma at Meir Medical Center between 1993 and 2007. PARTICIPANTS: Twenty-six patients, with intraorbital or subconjunctival masses with orbital involvement, were examined and followed up between 1 and 8 years. MATERIALS AND METHODS: Examined data included: clinical presentation, age, gender, imaging, tumor location, surgical management, and pathological diagnosis...
March 31, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28356250/pseudotumor-cerebri-syndrome-in-childhood-incidence-clinical-profile-and-risk-factors-in-a-national-prospective-population-based-cohort-study
#20
Yim-Yee Matthews, Fiona Dean, Ming J Lim, Karen Mclachlan, Alan S Rigby, Guirish A Solanki, Catharine P White, William P Whitehouse, Colin R Kennedy
AIM: To investigate the epidemiology, clinical profile and risk factors of pseudotumor cerebri syndrome (PTCS) in children aged 1-16 years. METHODS: A national prospective population-based cohort study over 25 months. Newly diagnosed PTCS cases notified via British Paediatric Surveillance Unit were ascertained using classical diagnostic criteria and categorised according to 2013 revised diagnostic criteria. We derived national age, sex and weight-specific annual incidence rates and assessed effects of sex and weight categories...
August 2017: Archives of Disease in Childhood
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