Cannula intended to traverse the conjunctiva and/or the sclera of the eye in order to enable the passage of at least one tool intended to have an action in the intraocular volume, such as a suction instrument, an instrument for cutting—for example at high speed—the vitreous gel contained in the intraocular volume, a light-guide intended to transmit light in order to see what is happening in the intraocular volume or similar, the cannula including a tubular part defining a passage channel for the tool, which extends between a proximal opening intended to be outside the intraocular volume and a distal opening intended to be inside the intraocular volume.
