نتایج جستجو برای: peripapillary structures

تعداد نتایج: 456590  

2017
Gábor Holló

The term optical coherence tomography angiography (OCTA) comprises different OCT-based technologies which all allow noninvasive assessment of retinal perfusion, based on moving red blood cells. The main areas where OCTA is currently used are investigation of perfusion and vascular structure of the macular retina (e.g., in macular degenerations and diabetic macular diseases) and the disk and per...

2017
François-Xavier Borruat Graham E. Holder Fion Bremner

The autosomal recessive spastic ataxia of Charlevoix-Saguenay (ARSACS) is associated with structural retinal abnormalities either directly visible on funduscopy or revealed by optical coherence tomography (OCT). Most patients with ARSACS have a whitish peripapillary appearance corresponding to a thickening of the peripapillary retinal nerve fiber layer. OCT has also shown an absence of the phys...

2015
Guohong Tian Zhenxin Li Guixian Zhao Chaoyi Feng Mengwei Li Yongheng Huang Xinghuai Sun

We evaluate a cohort of optic neuritis and neuromyelitis optica (NMO) spectrum disorders patients in a territory hospital in China. The peripapillary retinal nerve fiber layer (RNFL) and macular ganglion cell complex (GCC) were measured using spectral-domain OCT after 6 months of acute onset. The results showed that both the peripapillary RNFL and macular GCC were significantly thinner in all o...

Journal: :middle east journal of cancer 0
morteza mehdizadeh poostchi eye research center, shiraz university of medical sciences, shiraz, iran masoomeh eghtedari poostchi eye research center, shiraz university of medical sciences, shiraz, iran mohammad reza khalili poostchi eye research center, shiraz university of medical sciences, shiraz, iran

herein, we report the clinical, pathologic and photographic findings of a 16 year-old girl who presented with gradual enlargement of a vascularized, hemorrhagic peripapillary mass that eventually led to vitreous hemorrhage and rubeosis iridis. histopathological findings after enucleation were positive for retinoblastoma. the patient did not have any metastasis during her 20 months of follow up.

Journal: :Archives of Ophthalmology 2003

2008
Sally A Buckley

Purtscher's retinopathy presents to the clinician as loss of vision in a patient with a history of a possible precipitating event such as recent major trauma, pancreatitis, childbirth or renal failure. The ophthalmological picture is one of ischaemia at the posterior pole with white patches ofoedema and haemorrhages concentrated around the optic disc. The most probable pathological cause is emb...

Journal: :British Journal of Ophthalmology 1972

2008

Purtscher's retinopathy presents to the clinician as loss of vision in a patient with a history of a possible precipitating event such as recent major trauma, pancreatitis, childbirth or renal failure. The ophthalmological picture is one of ischaemia at the posterior pole with white patches ofoedema and haemorrhages concentrated around the optic disc. The most probable pathological cause is emb...

2017
Soh Youn Suh Alan Le Andrew Shin Joseph Park Joseph L. Demer

Purpose We investigated the effect of graded range of horizontal duction on the shape of the peripapillary Bruch's membrane (ppBM) and optic nerve head (ONH). Methods In 50 eyes of 25 normal subjects, the ONH and peripapillary retina were imaged by optical coherence tomography (OCT) in central gaze and incremental angles of add- and abduction. Displacements of the Bruch's membrane opening (BM...

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