| 摘要 |
To provide an irrigation/aspiration apparatus by which a trouble for an operator is reduced and handling is facilitated and which is capable of preventing a sharp decrease of pressure of an anterior chamber with a simple constitution. The apparatus has a chamber storing an irrigation liquid, a vent tube for making the liquid flow into an aspiration tube, a leading vent leading the liquid into the chamber from an irrigation tubes an outflow pipe extended in an up-and-down direction, an opening formed on a wall of the outflow pipe, of which a width is narrow and set such that an opening is closed by the liquid under surface tension when a liquid level of the liquid inside the chamber rises, an outflow vent to which the irrigation tube or a vent tube is connected, and an air chamber which is a space provided above an inflow hole of the outflow pipe.
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