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A Novel Surgical Method to Treat Chronic Ocular Hypotony
Background And Objectives:
To assess the effect of a novel surgical method for the treatment of chronic ocular hypotony (COH). The surgical method involves partially blocking the iridocorneal angle and decreasing aqueous humor outflow. A capsular tension ring (CTR) is placed in the iridocorneal angle.
Patients And Methods:
Thirteen eyes of 13 patients were included in this retrospective, interventional case series. All of the eyes had severe ocular hypotony with a diagnosis of hypotony after vitreoretinal surgery or glaucoma filtration surgery. A CTR was placed in the iridocorneal angle via a corneal incision. The follow-up period was at least 1 year. Main outcome measurement was intraocular pressure (IOP).
Results:
IOP increased in all of the eyes. The increase in IOP persisted during the follow-up period. Visual acuity increased or stabilized in all of the eyes. No ocular complications were noted due to the procedure.
Conclusions:
The authors have described a novel and simple technique for the setting of IOP in COH. Mechanical obstruction of aqueous humor outflow with a CTR can increase IOP and stabilize or improve vision in eyes with COH for a follow-up time longer than 12 months. [Ophthalmic Surg Lasers Imaging Retina. 2019;50:e56-e60.].
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