| Features | Model PS2 and PS3 Valves already integrated with Pars Plana Clip. Reduces preptime for posterior chamber insertions. Clip is fully adjustable along tube length. Easily suture on sclera. Clip allows the tube not to kink. | Immediate reduction of intraocular pressure. Unique non-obstructive valve system to prevent excessive drainage, chamber collapse. Implanted in a true, single-stage procedure. Eliminates drainage tube ligature sutures, "rip-chord" sutures, occluding sutures. |