منابع مشابه
Tumour of the optic chiasma.
Tumours arising in the small area at the base of the brain between the optic chiasma and cerebral peduncles are common and include meningiomas, suprasellar and pituitary neoplasms, aneurysm of the circle of Willis, and chiasmal arachnoiditis with cyst formation. Tumours arising in the optic chiasma and nerve sheaths, however, are very uncommon. In all these conditions, visual symptoms may obtru...
متن کامل[Traumatic lesions of the optic nerve].
The problems of therapy are described by comparing a retrospective (17 cases) to a prospective (12 cases) study of cases of traumatic lesions of the optic nerve. Intensive cooperation between specialists and a quick diagnosis facilitate the decision regarding treatment and lead to better results. Indication for surgical treatment-transcranial or transethmoidal approach-should be confined to pos...
متن کاملGlioma of Chiasma and Optic Nerve.
IN a case of orbital optic nerve glioma without intracranial extension, Davis (1940) removed the tumour through a skin incision at the lower orbital margin, cutting the optic nerve near the apex of the orbit and behind the globe and thus retaining the eye. Verhoeff (1922) found that, even when the tumour was partially removed by the orbital route leaving some intracranial portion, no orbital re...
متن کاملThe anatomy of the optic chiasma and heteronymous hemianopia.
The gross anatomy of the optic nerves and chiasma has been studied, and differences in the tension in the crossed and uncrossed fibres after chiasmal displacement have been investigated. The anterior and posterior attachments of the medial and lateral fibres of the nerves have been studied. The chiasma has been dissected under low power microscopy and a three dimensional picture of it developed...
متن کاملEndoscopic decompression of the optic canal for traumatic optic neuropathy
PURPOSE Traumatic optic neuropathy (TON) is a serious complication of head trauma with the incidence rate of 0.5%-5%. The aim of this study was to investigate the therapeutic efficacy of endoscopic decompression of the optic canal for optic nerve injuries. METHODS In this study, 11 patients treated in our hospital from January 2009 to January 2015 with the visual loss resulting from TON were ...
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ژورنال
عنوان ژورنال: British Journal of Ophthalmology
سال: 1967
ISSN: 0007-1161
DOI: 10.1136/bjo.51.4.258