This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Ophthalmology
Which among the following is the commonest parasitic cause of uveitis? 
Select and explain. 
A. Toxocara, B. Amoebiasis, C. Taenia solium, D. Oncocercosis
A: Toxocara
Answer: A: Toxocara 
Explanation: Toxocariasis is an infestation caused by an intestinal roundworm of dogs (toxocara canis) and cats (Toxocara catis). Features of ocular toxocariasis: Toxocara chronic endophthalmitis Posterior pole granuloma Peripheral granuloma Ref: Comprehensive Ophthalmology by AK Khurana, 4th edition, Page 158.