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https://www.readbyqxmd.com/read/29327966/ocular-histomorphometry-of-free-living-common-kestrels-falco-tinnunculus
#1
Karin Werther, Cinthia Graziela Candioto, Rüdiger Korbel
We evaluated the histomorphometry of the eye structures (cornea, retina, choroid, and sclera) of 13 adult free-living common kestrels ( Falco tinnunculus). Birds included in the study were euthanatized because of severe trauma from a motor vehicle injury. The eyes were enucleated immediately after euthanasia, fixed in 10% buffered formalin, and decalcified. The right eyes were cut vertically (dorsoventrally) and the left eyes cut horizontally (temporonasally). Tissues were processed, stained with hematoxylin and eosin, and evaluated by an image analysis software...
December 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/29317144/comparison-of-clinicoradiological-findings-between-patients-with-recovering-diplopia-and-those-with-residual-diplopia-after-surgery-for-pure-orbital-blowout-fracture
#2
Hye Na Jung, Sang-Il Suh, Hyung-Jin Kim, Inseon Ryoo
PURPOSE: Diplopia is a common symptom of blowout fracture (BOF), and can persist after proper surgical management. We compared clinicoradiological findings between patients with recovering diplopia and those with residual diplopia after surgery for orbital BOF. MATERIALS AND METHODS: We retrospectively evaluated the CT images of 170 patients with orbital BOF and preoperative diplopia. We reviewed the following factors: sex, age, mechanism of injury, presence of diplopia before surgery, presence of enophthalmos before surgery, presence of an ocular motility abnormality before surgery, time interval between the trauma and surgery, fracture type, fracture size, volume of herniated orbital soft tissue, ratio of the volume of herniated orbital soft tissue to fracture size, number of points of contact between the extraocular muscle (EOM) and bony edge, EOM swelling, EOM swelling ratio, EOM displacement, EOM circling, EOM tenting, and EOM entrapment...
December 15, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29297053/anatomical-wiring-and-functional-networking-changes-in-the-visual-system-following-optic-neuritis
#3
Yael Backner, Joseph Kuchling, Said Massarwa, Timm Oberwahrenbrock, Carsten Finke, Judith Bellmann-Strobl, Klemens Ruprecht, Alexander U Brandt, Hanna Zimmermann, Noa Raz, Friedemann Paul, Netta Levin
Importance: Clinical outcome in multiple sclerosis was suggested to be driven by not only remyelination but also adaptive reorganization. This mechanism needs to be further understood. Objective: To explore anatomical and functional visual networks in patients with optic neuritis (ON) to assess the relative weight of each connectivity modality to expedite visual recovery. Design, Setting, and Participants: Between March 11, 2011, and May 26, 2014, 39 patients with either clinically isolated syndrome (CIS) ON (n = 18) or other CIS (non-ON) (n = 21) were recruited 1 to 28 months following an initial clinical event...
January 2, 2018: JAMA Neurology
https://www.readbyqxmd.com/read/29296555/irritant-contact-keratitis-caused-by-the-bodily-fluids-of-a-brown-marmorated-stink-bug
#4
Yi-Syun Shen, Chao-Chien Hu
PURPOSE: The brown marmorated stink bug is native to Asia (China, Taiwan, Japan, and the Korean peninsula). Its bodily fluids are toxic and irritating to the human skin and eyes. Human case reports are rare. Only one report of irritant contact dermatitis has been published. We report a case of irritant contact keratitis resulting from the chemical components of the bodily fluids of the bug. MATERIALS AND METHODS: A case report. RESULTS: A 74-year-old male presented to our emergency department with pain and redness in his right eye, which had been exposed to the bodily fluids of a brown marmorated stink bug...
October 2017: Taiwan Journal of Ophthalmology
https://www.readbyqxmd.com/read/29290461/oculomotor-palsy-in-diabetics
#5
H Lajmi, W Hmaied, W Ben Jalel, Z Chelly, A Ben Yakhlef, F Ben Zineb, L El Fekih
INTRODUCTION: Oculomotor palsy is one of the most frequent neuro-ophthalmologic complications of diabetic patients. It generates less interest in the literature than the other ocular manifestations. Our goal was to study the clinical, epidemiological, therapeutic and prognostic characteristics of oculomotor palsy in the diabetic. METHODS: This is a retrospective study of 24 diabetic patients with oculomotor palsy. The ophthalmological examination emphasized ocular motility...
December 28, 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/29288664/hydrogen-postconditioning-promotes-survival-of-rat-retinal-ganglion-cells-against-ischemia-reperfusion-injury-through-the-pi3k-akt-pathway
#6
Jiangchun Wu, Ruobing Wang, Dianxu Yang, Wenbin Tang, Zeli Chen, Qinglei Sun, Lin Liu, Rongyu Zang
Retinal ischemia/reperfusion injury (IRI) plays a crucial role in the pathophysiology of various ocular diseases. Our previous study have shown that postconditioning with inhaled hydrogen (H2) (HPC) can protect retinal ganglion cells (RGCs) in a rat model of retinal IRI. Our further study aims to investigate potential mechanisms underlying HPC-induced protection. Retinal IRI was performed on the right eyes of rats and was followed by inhalation of 67% H2 mixed with 33% oxygen immediately after ischemia for 1 h daily for one week...
December 27, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29288267/pi3k-akt-pathway-a-role-in-%C3%AE-opioid-receptor-mediated-rgc-neuroprotection
#7
Shahid Husain, Anis Ahmad, Sudha Singh, Carolyn Peterseim, Yasir Abdul, Matthew J Nutaitis
Purpose: This study examines the role of PI3K/Akt pathway in δ-opioid receptor agonist (SNC-121)-induced RGC neuroprotection in a chronic glaucoma rat model. Methods: Injecting hypertonic saline into the limbal veins of Brown Norway rats elevated IOP. Rats were treated either with 1 mg/kg SNC-121 or 3 mg/kg 2-(4-morpholinyl)-8-phenyl-1(4H)-benzopyran-4-one hydrochloride (LY-294002; PI3K/Akt inhibitor) plus SNC-121 once daily for 7 days. Pattern ERGs were recorded in response to contrast reversal of patterned visual stimuli...
December 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29286999/comprehensive-evaluation-of-visual-function-in-patients-with-orbital-fracture-by-visual-electrophysiology-and-visual-field-examination
#8
Shao-Rui Liu, Mao Li, Fang-Lin He, Zheng-Kang Li, Xian-Qun Fan
OBJECTIVE: At present, the effect of the visual electrophysiology and vision field examination in patients with orbital blowout fracture is rarely studied. So, the authors investigate the value of visual electrophysiology and vision field examination in the diagnosis of ocular contusion. METHODS: The position and range of fracture of 81 patients were determined by computed tomography (CT) scanning. Visual evoked potential (VEP), electroretinogram (ERG), and mfERG were vision field examination detected in 81 patients and the results were compared with those of contralateral healthy eyes...
January 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29283153/bilateral-medial-rectus-palsy-due-to-midbrain-infarction-following-concussion-head-injury
#9
Hansa H Thakkar, Apeksha Agrawal, Stuti Trivedi, Kartikey Singh
Here, we report a rare case of bilateral medial rectus palsy following closed head injury. An adult male had an accidental fall which rendered him unconscious. This was followed by diplopia and restricted ocular motility. He received supportive medical therapy. He was examined for systemic medical and ophthalmic findings. Routine laboratory tests and imaging techniques were employed as per the symptoms. Diffusion-weighted imaging on magnetic resonance imaging proved it to be a rare presentation of small bilateral midbrain infarct...
January 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29283146/branch-retinal-artery-occlusion-post-penetrating-globe-injury-with-intraocular-foreign-body
#10
Manish Nagpal, Pranita Chaudhary, Ashish Jain
Intraocular foreign body (IOFB) in cases of penetrating eye injury accounts for an important indication of vitreoretinal intervention following ocular trauma. Vascular occlusion as a complication of IOFB is rare. Here we present a case of a 34-year-old male with post-traumatic cataract and an intraocular metallic foreign body (IOFB) lodged in the superficial layers of the retina inferotemporal to the disc, causing an inferotemporal branch retinal artery occlusion. The case was managed by lensectomy with pars plana vitrectomy and IOFB removal followed by a second procedure of secondary IOL implantation...
January 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29283143/ocular-infections-caused-by-scedosporium-apiospermum-a-case-series
#11
Seema Ramakrishnan, Kunal Mandlik, Tejashree Sanket Sathe, Joseph Gubert, Thiruvengada Krishnan, Prabu Baskaran
The aim of our retrospective study is to report a case series of ocular infections caused by a rare fungus, Scedosporium apiospermum, in a South Indian population. Thirteen cases of culture-positive S. apiospermum infections diagnosed between January 2011 and March 2016 were included in this study. The parameters evaluated were predisposing factors, treatment and final clinical outcome. The most common mode of presentation was keratitis (84.6%) followed by sclerokeratitis (15.3%). The predisposing factors involved were unspecified foreign body injury (30...
January 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29283122/results-of-simple-limbal-epithelial-transplantation-in-unilateral-ocular-surface-burn
#12
Nidhi Gupta, Jagdish Joshi, Javed Hussain Farooqui, Umang Mathur
PURPOSE: This study aimed to report the long-term outcomes of autologous Simple Limbal Epithelial Transplantation (SLET) performed for unilateral limbal stem cell deficiency (LSCD) following chemical burn at a tertiary eye center in North India. METHODS: This was a single-center prospective interventional case series of patients who developed unilateral LSCD after suffering from ocular surface burns and who underwent SLET between October 2012 and May 2016 with a follow-up period of at least 6 months...
January 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29260046/outcomes-in-bullous-retinal-detachment
#13
Sarah P Read, Ryan C Young, Harry W Flynn
Purpose: To report two patients with giant retinal tear (GRT) associated retinal detachment in the setting of baseball trauma. Observations: Two patients presented with retinal detachment associated with GRT following blunt trauma with a baseball. The first was a superotemporal GRT detachment treated with scleral buckling, pars plana vitrectomy, endolaser, and silicone oil injection. He subsequently underwent cataract surgery with silicone oil removal and at two year follow up the retina with attached with best-corrected visual acuity of 20/20...
June 2017: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29260043/oculocardiac-reflex-elicited-by-orbital-floor-fracture-and-inferior-globe-displacement
#14
Chau M Pham, Steven M Couch
Purpose: To review the physiology, presentation and management of the oculocardiac reflex (OCR) by describing a case of the OCR associated with an orbital foreign body and complete ocular prolapse through a large orbital floor fracture in a 40-year-old male following a motor vehicle accident. Observations: The patient demonstrated marked bradycardia and hypotension necessitating intubation and medical therapy for autonomic shock. A computed tomography (CT) showed a total blow out floor fracture and complete dislocation of a radiographically intact globe with uninterrupted rectus muscle attachments into the left maxillary sinus...
June 2017: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29259248/aav-vector-meditated-expression-of-hla-g-reduces-injury-induced-corneal-vascularization-immune-cell-infiltration-and-fibrosis
#15
Matthew L Hirsch, Laura M Conatser, Sara M Smith, Jacklyn H Salmon, Jerry Wu, Nicholas E Buglak, Rich Davis, Brian C Gilger
Over 1.5 million individuals suffer from cornea vascularization due to genetic and/or environmental factors, compromising visual acuity and often resulting in blindness. Current treatments of corneal vascularization are limited in efficacy and elicit undesirable effects including, ironically, vision loss. To develop a safe and effective therapy for corneal vascularization, adeno-associated virus (AAV) gene therapy, exploiting a natural immune tolerance mechanism induced by human leukocyte antigen G (HLA-G), was investigated...
December 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29251712/prediction-of-traumatic-carotid-cavernous-sinus-fistula-via-non-contrast-ct-by-fracture-pattern-and-abnormality-of-venous-system
#16
Shih-Hsuan Mao, Tzu-Chin Lin, Chih-Hao Chen, Pang-Yun Chou, Shang-Yu Wang, Yon-Cheong Wong, Chien-Tzung Chen
BACKGROUND: Traumatic carotid-cavernous sinus fistula (tCCF) is infrequent but with high morbidity if delayed diagnosed or managed. Due to the lack of screening criteria and requirement of advanced and invasive radiological examinations, diagnosis is often delayed or underdiagnosed. METHODS: A matched case-control study with univariate and multivariate analysis was conducted to predict tCCFs. Forty-six patients diagnosed with tCCFs were included and matched with 138 patients of craniofacial trauma without tCCF as control at a ratio of 1:3...
December 14, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/29237667/posterior-capsular-rupture-and-spontaneous-posterior-dislocation-of-lens-following-electrical-injury
#17
Devesh Kumawat, Karthikeya Ramananda, Pranita Sahay, Atul Kumar
Lenticular changes are often seen following electrical injury. We report an unusual case of electrical injury with late spontaneous posterior dislocation of lens nucleus with intact anterior capsule with ruptured posterior capsule in the right eye and anterior subcapsular cataract in the left eye. The right eye was managed with pars plana vitrectomy with cortical matter removal with multipiece intraocular lens insertion in ciliary sulcus. This report adds posterior capsular rupture and posterior dislocation of lens to the usual ocular complications of electrical injury...
December 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29234586/aspergillus-tamarii-keratitis-in-a-contact-lens-wearer
#18
Juan Cuadros, Juan Gros-Otero, Patricia Gallego-Angui, Ann Karolin Scheu, Ángeles Montes-Mollón, Cinta Pérez-Rico, Javier Paz Moreno, Peña Gómez-Herruz, Juan Soliveri, Miguel Teus
Keratitis produced by Aspergillus tamarii has been previously described associated to an ocular injury. We report a case in a contact lens wearer with a history of previous bilateral myopic LASIK ablation, bilateral intracorneal rings and vitrectomy and scleral buckling in his left eye. The fungus could be quickly identified combining phenotype, microscopy and mass spectrometry. Treatment with intravenous amphotericin, oral voriconazole, and topical amphotericin and natamycin and voriconazole was needed for corneal preservation...
March 2018: Medical Mycology Case Reports
https://www.readbyqxmd.com/read/29234231/spectral-domain-optical-coherence-tomography-and-en-face-imaging-in-presumed-ocular-chalcosis
#19
Neha Goel
A 35-year-old male, with a history of injury sustained three years back, underwent pars plana vitrectomy with intravitreal copper foreign body removal. Post-operatively, visual acuity improved; however, glistening refractile particles were seen at the macula. Spectral domain optical coherence tomography and en-face imaging were performed to localise the level of the deposits. To the best of our knowledge, this is the first such documentation in presumed ocular chalcosis.
October 2017: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
https://www.readbyqxmd.com/read/29234230/traumatic-eye-ball-luxation-a-stepwise-approach-to-globe-salvage
#20
Himika Gupta, Srivalli Natarajan, Sushrut Vaidya, Shipra Gupta, Dinesh Shah, Raj Merchant, Shrikant Deshpande
Craniofacial trauma is often associated with orbital and ocular injuries. We report a case of a 21-year-old male with motor vehicular accident, orbital roof blow-in fracture, cerebrospinal fluid (CSF) leak, and left sided globe luxation with corneal abrasion and complete conjunctival denuding. The patient was managed by a multispeciality team and the eyeball was protected by amniotic membrane graft (AMG) biological dressing with novel use of inverted sterile metallic bowl as mechanical protection till the patient stabilized...
October 2017: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
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