耳鼻咽喉科展望
Online ISSN : 1883-6429
Print ISSN : 0386-9687
ISSN-L : 0386-9687
経鼻視神経管開放術
高橋 良堤 昌己中島 博次武茂 高行
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1968 年 11 巻 1 号 p. 29-33,2

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In recent years exploration of the canalis fasciculi optici is indicated more often because of traffic and factory worker's accidents resulting in fractures of the canalis.
The canalis has also to be explored when it is injured during the paranasal sinus operation
As for exploring techniques of the canalis fasciculi optici, many extranasal approaches have been reported.
In our department transnasal approach is practiced since it was advocated by Prof. Takahashi in 1951.
Along with our several recently encountered cases, operative technique of the transnasal approach was re-introduced.
By this method, the paranasal sinuses and the osseous prominence of the canalis fasciculi optici are well exposed and their anatomical inter-relation is well recognized.
Cause and effect of visual impairment due to fracture of the canalis fasciculi optici and the regional anatomy were discussed.

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