Effectiveness of Pegylated Interferon Alpha-2a in Post-Uveitic Macular Edema Previously Responding to Non-Pegylated Interferon.

To evaluate the efficacy of pegylated interferon (PEG-IFN) alpha-2a to treat post-uveitic relapsing macular edema (ME) after withdrawal of non-PEG IFN alpha-2a or 2b to maintain treatment efficacy. This retrospective study investigated subjects with post-uveitic ME who received weekly subcutaneous PEG-IFN alpha-2a injections. Comparisons between baseline central macular thickness (CMT) and best-corrected visual acuity (BCVA) and those at all follow-up visits were made. Six patients (nine eyes) were treated and followed up for six months. CMT (mean [standard deviation]) decreased from 375[117] to 283[39] μm after one month ( Post-uveitic ME patients were effectively and safely treated with PEG-IFN alpha-2a.