This video combines cataract surgery with placement of a glaucoma seton drainage device. It shows the technique of creating a scleral tunnel in which to pass the seton drainage tube instead of using a patch graft. We don’t want the tube to be directly under the conjunctiva because it can erode through and become exposed. This technique is useful since it does not require additional donor processed sclera or tutoplast or other materials to act as a barrier. The cataract surgery should also be done a little differently so that there are no IOL related issues in the post-op period if there are periods of hypotony with a flat anterior chamber.
click to learn from this video of cataract and glaucoma seton tube placement:
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