A 28-year-old Indian man with a history of recurrent oral ulcers and genital ulcers presents with acute onset of floaters, photopsia, and blurred vision in both eyes. On examination, visual acuity is 6/36 bilaterally. Slit-lamp shows mild anterior chamber cells (1+) in both eyes. Fundoscopy reveals extensive hemorrhagic retinitis with retinal necrosis, branch retinal artery occlusion, and minimal vitritis. Anterior chamber reaction is disproportionately mild compared to posterior involvement. What is the most likely diagnosis?