Trabeculectomy surgery with Mini-Shunt is used to help lower intraocular pressure when maximum medical therapy with eye drops and laser treatment is not enough. The surgery involves creating a tiny scleral flap superior to the cornea and inserting a microscopic, stainless steel, mini-shunt into the front part of the eye under the scleral flap. This allows the aqueous fluid from inside the eye to slowly drain through the shunt and form a small bleb, or fluid filled conjunctival cyst. The bleb is concealed by the upper eyelid. The slow drainage of fluid is not harmful to the eye and decreases the internal pressure.

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