نتایج جستجو برای: optical nerve

تعداد نتایج: 425682  

Journal: :Archives of ophthalmology 2005
Rajendra S Apte Andrew P Schachat Cathy DiBernardo James T Handa

1. Lincoff H, Lopez R, Kreissig I, Yannuzzi L, Cox M, Burton T. Retinoschisis associated with optic nerve pits. Arch Ophthalmol. 1988;106:6167. 2. Spaide RF, Costa DL, Huang SJ. Macular schisis in a patient without an optic disk pit optical coherence tomographic findings. Retina. 2003; 23:238-240. 3. Rutledge BK, Puliafito CA, Duker JS, Hee MR, Cox MS. Optical coherence tomography of macular le...

2010
Debbie K. Chen M. Kelley Erb Yunjie Tong Yang Yu Angelo Sassaroli Peter R. Bergethon Sergio Fantini

Using non-invasive, near-infrared spectroscopy we have previously reported optical signals measured at or around peripheral nerves in response to their stimulation. Such optical signals featured amplitudes on the order of 0.1% and peaked about 100 ms after peripheral nerve stimulation in human subjects. Here, we report a study of the spatial and spectral dependence of the optical signals induce...

Journal: :Biophysical journal 2007
Taner Akkin Chulmin Joo Johannes F de Boer

We report noncontact optical measurement of fast transient structural changes in the crustacean nerve during action potential propagation without the need for exogenous chemicals or reflection coatings. The technique, spectral domain optical coherence tomography, provides real-time cross-sectional images of the nerve with micron-scale resolution to select a specific region for functional assess...

Journal: :acta medica iranica 0
gholamali yousefipour department of neurology sciences, clinical neurology research center, shiraz university of medical sciences, shiraz, iran. zabihollah hashemzahi department of neurology sciences, clinical neurology research center, shiraz university of medical sciences, shiraz, iran. masood yasemi department of ophthalmology, poostchi eye research center, shiraz university of medical sciences, shiraz, iran. pegah jahani department of medicine, student research committee, shiraz university of medical sciences, shiraz, iran.

multiple sclerosis (ms) is the most prevalent disease caused by the inflammatory demyelinating process that causes progressive nervous system degeneration over the time. optical coherence tomography (oct) is a non-invasive optical imaging technology, which can measure the thickness of retinal nerve fiber layer as well as the diameter of the macula. the purpose of the study is evaluation oct fin...

2012
Jaromir T. Wasyluk Irmina Jankowska-Lech Barbara Terelak-Borys Iwona Grabska-Liberek

BACKGROUND We compared the parameters of retinal nerve fibre layer in patients with advanced glaucoma with the use of different OCT (Optical Coherence Tomograph) devices in relation to analogical measurements performed with GDx VCC (Nerve Fiber Analyzer with Variable Corneal Compensation) scanning laser polarimetry. MATERIAL/METHODS Study subjects had advanced primary open-angle glaucoma, pre...

Journal: :Revista medico-chirurgicala a Societatii de Medici si Naturalisti din Iasi 2012
Ledia Balla N Ianovici D Costin

UNLABELLED The optic nerve injury is produced by damaging the optic nerve within a craniocerebral trauma. The anatomo-pathology and the pathology of posttraumatic visual impairments are fundamental data for the therapeutic indications. The microscopic examination reveals only the particular cases of very serious or severe extensive lesions. Damage to the vessels of the optic nerve, damage and b...

Journal: :Acta medica portuguesa 2015
Tatiana Queirós Cristina Freitas Sandra Guimarães

INTRODUCTION Optical coherence tomography is a technology that allows obtaining high resolution images of tissues in vivo, enabling the measurement of ocular structures, including the retinal nerve fiber layer and macular thickness. As a noninvasive test it's particularly useful in children, but its applicability is limited by the existence of normative values for adults only. PURPOSE To esta...

2015
Tatiana QUEIRÓS Cristina FREITAS Sandra GUIMARÃES

Introduction: Optical coherence tomography is a technology that allows obtaining high resolution images of tissues in vivo, enabling the measurement of ocular structures, including the retinal nerve fiber layer and macular thickness. As a noninvasive test it’s particularly useful in children, but its applicability is limited by the existence of normative values for adults only. Purpose: To esta...

Journal: :Arquivos brasileiros de oftalmologia 2010
Antonio Marcelo Barbante Casella Michel Eid Farah Eduardo Cunha de Souza Rubens Belfort Ana Paula Miyagusko Taba Oguido

PURPOSE To report the findings of optical coherence tomography (OCT) in three cases of diffuse unilateral subacute neuroretinitis (DUSN). METHODS Three young patients with confirmed diagnosis of diffuse unilateral subacute neuroretinitis were followed-up using Stratus OCT. RESULTS Optical coherence tomography findings included retinal nerve fiber layer atrophy and focal edema where the worm...

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