The patient was a 78-year-old man who noticed distortion in the right eye for one month. His past medical history is remarkable for a metastasis to the right occipital cortex from lung cancer in 2015, which left him with a left visual field defect. There has been no evidence of active neoplasia subsequently. In our office, he also had Amsler grid changes in the left eye. The visual acuity was 20/40-2 OD and 20/20 OS. Anterior segment examination was remarkable for a posterior chamber IOL without capsular opacity in each eye. Posterior segment examination revealed RPE changes in the macula of each eye without hemorrhages or evident swelling. What is the most likely diagnosis? What treatment, if any, is warranted?