نتایج جستجو برای: optic nerve disease

تعداد نتایج: 1651312  

Journal: :American Journal of Ophthalmology 1919

Journal: :Pediatric Neurology Briefs 1990

2016
Seong-Cheol Park Sang Hyung Lee

Preservation of the optic nerves is an important issue in the resection of tuberculum sellae meningiomas. We report the case of a patient whose optic nerve was penetrated by a tuberculum sellae meningioma. During surgery, a bulging tumor was found to penetrate the right optic nerve. The tumor was gross totally removed, including tumors bulging through the optic nerve. Two trunks of the split op...

2016
Rupali Nikhare Pranchal Chaudhari

Glaucoma is an eye disease that leads to vision loss. The symptoms of the glaucoma occurs when disease is quite advance. Glaucoma is called ‘silent thief of sight’ so, that early detection of glaucoma is very essential. In existing approach three methods are used to detect glaucoma namely Assessment of raised intraocular pressure (IOP).Assessment of abnormal visual field. Assessment of damaged ...

2013
Mohsen PARVIZ Mohammad Ali SAHRAIAN Hossein REZAEIZADEH

Although there are no clinical findings that are exclusive to multiple sclerosis (MS), but some are highly specific of the disease. Optic neuritis (ON) and Sensory symptoms are common initial features of MS (1, 2). Optic neuritis is an inflammation of the optic nerve that usually first occurs in young and in many cases are associated with multiple sclerosis (MS), also can occur in isolation. In...

Journal: :JOURNAL OF JAPAN SOCIETY FOR HEAD AND NECK SURGERY 1994

2011
Shibal Bhartiya Ritu Gadia Harinder S Sethi Anita Panda

Glaucomatous optic neuropathy is characterized by changes in the intrapapillary and parapapillary region of the optic nerve head, including excavation of the optic nerve head and consequent defects in retinal sensitivity with visual field defects and other psychophysical alterations. Clinical evaluation of the optic nerve head has been shown to have a high specificity and good precision for gla...

Journal: :Investigative ophthalmology & visual science 2007
Alex W Hewitt Johan P Poulsen Wallace L M Alward Sonya L Bennett Wido M Budde Richard L Cooper Jamie E Craig John H Fingert Paul J Foster David F Garway-Heath Catherine M Green Christopher J Hammond Sohan S Hayreh Jost B Jonas Paul L Kaufman Neil R Miller William H Morgan Nancy J Newman Harry A Quigley John R Samples George L Spaeth Konrad Pesudovs David A Mackey

PURPOSE Numerous genetic diseases and environmental stimuli affect optic nerve morphology. The purpose of this study was to identify the principal heritable components of visible optic nerve head structures in a population-based sample of twins. METHODS Fifteen optic nerve specialists viewed stereoscopic optic nerve head photographs (Stereo Viewer-II; Pentax Corp., Tokyo, Japan) from 50 rando...

Journal: :Zhurnal voprosy neirokhirurgii imeni N. N. Burdenko 2013
V A Cherekaev N V Lasunin M A Stepanian D L Rotin N N Grigor'eva E R Vetlova N V Lobanova

Metastatic tumours of the optic nerve are extremely rare. The review of literature revealed only 12 cases of breast carcinoma metastasis to the optic nerve. All patients survived less then 6 month after surgical treatment. We describe a case of metastatic breast carcinoma to the optic nerve that occurred 8 years after radical mastectomy followed by chemotherapy. The metastasis manifested with p...

2016
Vivian B Osaguona

Optic atrophy is not a disease in itself but a clinical sign. It refers to pallor of the optic disc which results from irreversible damage to the retinal ganglion cells and axons. The axons of the retinal ganglion cells make up the optic nerve and continue onto the optic chiasm, optic tract and up to the lateral geniculate body before they synapse. Injury to the retinal ganglion cells and axons...

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