This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Uveal Tract, Subject name: Ophthalmology
Which of the following is the most common cause of chronic iridocyclitis in children? 
Select and explain. 
A. Juvenile idiopathic arthritis, B. SLE, C. Sjogren's Syndrome, D. Behcet's disease
A: Juvenile idiopathic arthritis
Answer: A: Juvenile idiopathic arthritis 
Explanation: Ans. is 'a' i.e., Juvenile idiopathic arthritis o The most frequent cause of chronic intraocular inflammation among children is juvenile idiopathic arthritis (JIA)- associated uveitis.