Adenis J P, Salomon J L
Service d'ophtalmologie, CHU Dupuytren, Limoges.
J Fr Ophtalmol. 1993;16(8-9):490-2.
The authors describe a valve for optic nerve sheath fenestration. The valve is composed of a silicone tube with one end placed between the two layers of the arachnoïd at the top of the optic nerve head and the other end blocked but laterally fenestrated with two slits, fixed to the sclera with two small silicone wings. The pressure inside the tube can open the two slit openings when greater than ten millimetres of mercury. This valve has been designed in order to obtain a better function for optic nerve sheath fenestration operations.
作者描述了一种用于视神经鞘开窗术的瓣膜。该瓣膜由一根硅胶管组成，一端置于视神经乳头顶部蛛网膜的两层之间，另一端封闭但侧面有两个狭缝开窗，通过两个小硅胶翼固定在巩膜上。当管内压力大于10毫米汞柱时，可打开两个狭缝开口。设计此瓣膜是为了使视神经鞘开窗手术获得更好的功能。
