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Silicone oil-induced secondary angle closure another application for single-pass four-throw pupilloplasty
Silicone oil is one of the most commonly used tamponade agents in vitreoretinal surgeries. There are multiple adverse effects and complications of silicone oil; one of these complications is secondary angle closure. This can occur commonly when combined with scleral buckles, which can cause congestion and anterior rotation of the ciliary body, resulting in angle closure. Other mechanisms that can cause angle closure in eyes injected with silicone oil are pupillary block glaucoma, closure of peripheral iridectomy, inflammation and peripheral anterior synechiae. The end result is narrowing of