نتایج جستجو برای: optical nerve

تعداد نتایج: 425682  

Journal: :Investigative ophthalmology & visual science 2016
Helena Lee Frank A Proudlock Irene Gottlob

PURPOSE Optical coherence tomography (OCT) has revolutionized the diagnosis and management of adult retinal and optic nerve disease. Children were deprived of this technology until the recent development of handheld spectral-domain OCT (HH-SDOCT). In this article, we review the applications of OCT imaging in pediatric ophthalmology. METHODS This study was a review of the literature. RESULTS...

Journal: :iranian biomedical journal 0
مرتضی بهنام رسولی morteza behnam-rasouli محمدرضا نیک روش mohammadreza nikravesh ناصر مهدوی شهری nasser mahdavi-shahri علیرضا فاضل alireza fazel

to evaluate the effects of local administration of the fetal brain extract (fbe) on the crushed peripheral nerve, 15 male wistar rats were used. the right sciatic nerve of 10 rats was locally underwent the tense compression for 30 seconds and then randomly divided into experimental and control (sham) groups. the remained rats were considered as intact animals. treatment was commenced weekly, by...

Journal: :مجله دانشگاه علوم پزشکی شهید صدوقی یزد 0
حمید رضا سامی مقدم hr sami magham احمد نگهی a negahi انوشه حقیقی a haghighi رویا فیاض r fayaz الهام بوشهری e booshehri

introduction: arteriovenous fistulas (avf) make chronic hemodialysis easy, but the complications are unpredictable. ischemic neuropathy due to arterial insufficiency is one of the most important complications of avf. this study was designed to evaluate ischemic neuropathy using electro diagnostic method in the extremity carrying fistula. methods: in this cross-sectional study, 37 hemodialysis p...

Journal: :anatomical sciences journal 0
mohammad sadegh gholami farashahi department of anatomy, school of medicine, tehran university of medical sciences, tehran, iran. amir hossein mohammadi department of anatomy, school of medicine, tehran university of medical sciences, tehran, iran. farid abolhasani department of anatomy, school of medicine, tehran university of medical sciences, tehran, iran.

introduction: the brachial plexus is responsible for the innervation to the upper limb and some parts of the thorax. variations in the branching of the brachial plexus are common and have been reported in 65.3% of the population. the variations (atypical communication) of brachial plexus have significant clinical and surgical importance. methods: in this study 10 upper limbs which belonged to 5...

Journal: :acta medica iranica 0
ghaffarpour m dolatabadi a harirchian mh

footdrop is a relatively common deficit among the neurological disorders, which has different causes with various levels of involvement in neuromuscular system, including central nervous system (brain cortex, spinal cord), fifth lumbar root, peripheral nerves and muscles. peroneal nerve injury at the fibular head has been reported to the most common cause of foot drop, which can be due to infar...

Journal: :anesthesiology and pain medicine 0
faranak rokhtabnak department of anesthesiology and pain medicine, firoozgar hospital, iran university of medical sciences, tehran, iran mohammad mahdi zamani department of anesthesiology and pain medicine, firoozgar hospital, iran university of medical sciences, tehran, iran alireza kholdebarin department of anesthesiology and pain medicine, firoozgar hospital, iran university of medical sciences, tehran, iran alireza pournajafian department of anesthesiology and pain medicine, firoozgar hospital, iran university of medical sciences, tehran, iran mohammad reza ghodraty department of anesthesiology and pain medicine, firoozgar hospital, iran university of medical sciences, tehran, iran; department of anesthesiology, firoozgar hospital, behafarin st., karim khan ave, p. o. box: 1593748771, tehran, iran.tel: +98-2184902450, fax: +98-2188633039

conclusions our anesthesia method was sciatic and femoral nerve block under double ultrasonic and nerve stimulator guidance. case presentation in this case report, we present a patient who had tibia and fibula fractures and a symptomatic severe critical aortic stenosis which was diagnosed during a preoperative visit. the patient had exertional dyspnea, palpitations and fainting history, but he ...

Journal: :the archives of bone and joint surgery 0
shayan abdollah zadegan 1.tissue repair lab, institute of biochemistry and biophysics (ibb), university of tehran, tehran iran. 2.research center for neural repair (rcnr), university of tehran, tehran, iran. masoumeh firouzi 1.tissue repair lab, institute of biochemistry and biophysics (ibb), university of tehran, tehran iran. 2.research center for neural repair (rcnr), university of tehran, tehran, iran. mohammad hossein nabian 1.department of orthopedic and trauma surgery, shariati hospital, tehran university of medical sciences, tehran, iran. 2.research center for neural repair (rcnr), university of tehran, tehran, iran. leila oriady zanjani 1.department of orthopedic and trauma surgery, shariati hospital, tehran university of medical sciences, tehran, iran. 2.research center for neural repair (rcnr), university of tehran, tehran, iran. ahmad mohebbi ashtiani research center for neural repair (rcnr), university of tehran, tehran, iran. reza shahryar kamrani 1.department of orthopedic and trauma surgery, shariati hospital, tehran university of medical sciences, tehran, iran. 2.joint reconstruction research center, tehran university of medical sciences, tehran, iran.

excessive scarring; paralleling the process in tendon reconstruction of the hand. inspired by the advantages of the two-stage technique in tendon grafting and with encouraging preliminary results, we aimed to investigate the two-stage nerve grafting technique as an alternative method of secondary nerve repair. methods:  thirty female rats (~200 g) were randomly distributed into two groups (n=15...

Journal: :Mitochondrion 2017
Nicole Balducci Antonio Ciardella Roberto Gattegna Qienyuan Zhou Maria Lucia Cascavilla Chiara La Morgia Giacomo Savini Vincenzo Parisi Francesco Bandello Valerio Carelli Piero Barboni

Peripapillar and nerve head vessel density (VD) was measured in 10 patients affected by Dominant optic atrophy (DOA) using optical coherence tomography angiography (OCT-A) and compared to the measurements of 15 age- and gender-matched controls. DOA patients showed VD reduction, mostly in the temporal and inferotemporal peripapillary sectors, according to the preferential involvement of the papi...

2010
Antonio Ferreras Luis E Pablo

Glaucoma is a progressive, multifactorial optic neuropathy characterised by acquired atrophy of the optic nerve due to the loss of retinal ganglion cells and their axons in the retina. Thus, evaluation of the retinal nerve fibre layer (RNFL) is key to diagnosing and monitoring changes in patients with glaucoma. Until recently, red-free fundus photographs were the clinical standard for evaluatin...

Journal: :US ophthalmic review 2013
Mitra Sehi Shawn M Iverson

Advanced ocular imaging technologies facilitate objective and reproducible quantification of change in glaucoma but at the same time, impose new challenges on scientists and clinicians for separating true structural change from imaging noise. This review examines time-domain and spectral-domain optical coherence tomography, confocal scanning laser ophthalmoscopy and scanning laser polarimetry t...

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