Paul glaucoma implant extrusion following post-surgical scleritis in patients with uveitic glaucoma: A case series

Purpose

This report describes two cases of plate exposure and severe extrusion of the Paul Glaucoma Implant (PGI) following post-surgical exacerbation of scleritis. Additionally, it outlines the management approach used to control ocular inflammation and perform explantation, including exchange to a Preserflo MicroShunt in one of the cases. Observations: Two females receiving systemic immunosuppression developed exacerbation of scleritis 7 and 5 months post PGI implantation. One patient demonstrated scleral melt and conjunctival thinning beneath the large PGI plate. Both patients received maximum doses of systemic corticosteroids and mycophenolate mofetil to control ocular inflammation. Owing to the high risk of infection and re-exposure, each patient underwent PGI explantation. In one case, a Preserflo MicroShunt was implanted during the same surgical session to minimize conjunctival manipulation and maintain long-term intraocular pressure control, which remained stable for more than a year.