Fig. 1
From: Ab interno implantation of glaucoma drainage devices tubes in the posterior chamber
Surgical technique of implantation of a glaucoma drainage device (GDD) tube into the posterior chamber. After cutting the tube (a), a needle with a Prolene suture (b) is inserted through the tube; a 23-gauge needle then is inserted through a clear corneal incision into the anterior chamber and advanced to the posterior chamber and through the sclera and eyeball (c). The two straight needles with the Prolene sutures are introduced into the lumen of the 23-gauge needle (d), and the 23-gauge needle is removed (e). The two needles attached to the Prolene sutures are removed from the 23-gauge (f) needle lumen; the GDD tube then is inserted simultaneously as the Prolene suture is pulled out (g). Finally, one of the ends of the Prolene sutures is cut out of the eye, and then the other end is pulled to completely remove the suture from the inside of the eye, since the suture is not knotted to the tube but only goes through the tube (h)