This case report describes a 70-year-old male patient who reported experiencing sudden blurred vision in his right eye over the past week. The patient has been managing glaucoma for five years, during which he underwent peripheral iridotomy in both eyes, but he has not been on any anti-glaucoma medications. Furthermore, he has been living with diabetes mellitus for 20 years and is also dealing with Parkinson's disease. After many tests, such as a fundus examination, perimetry, OCT, MRI scan, and fundus photography, it was found that the patient had papilledema in the right eye due to ischemic optic neuropathy and primary optic atrophy in the left eye due to Non-Arteritic Anterior Ischemic Optic Neuropathy (NAION). This led to the diagnosis of pseudo-foster Kennedy syndrome (PFKS).

Keywords: Pseudo Foster Kennedy syndrome (PFKS), Glaucoma, Optic atrophy, and papilledema.