This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vitreous Humour, Uveal Disorders, Subject name: Ophthalmology
[{'content': 'Snow ball opacities near the ora serrata are pathognomic of \nSelect and explain. \nA. Iridocyclitis, B. Pars Planitis, C. Chorioretinitis, D. Fungal Endophthalmitis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Anterior uveitis Intermediate uveitis Posterior uveitis Iridocyclitis Pars planitis Vitritis Chorioretinitis Idiopathic Idiopathic Toxoplasmosis Pain: + Redness: + Loss of vision: + Pain: x Redness: x Loss of vision: + Floaters: + Pain: x Redness: x Loss of vision: + Cell in anterior chamber. Keratic precipitates Snow ball & snow banks In toxoplasmosis - headlight in fog Choroiditis Topical steroids Cycloplegics Inj triamcinolone Systemic steroids Antimicrobials', 'role': 'assistant'}]