Transient Daily Episodes of Vision Loss Due to Parkinson's Disease

Visual complaints are common in Parkinson's disease (PD), but transient visual loss has not previously been defined as a feature of parkinsonian-related disease. We report a patient with recurrent daily episodes of transient and disabling visual loss due to PD-related non-motor fluctuation. During his visit, he experienced one such episode, which allowed for close observation and examination during and after the visual loss. Implications for localization of the visual loss are reviewed in the context of visual pathway disturbances in PD.