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
[{'content': 'Ramnath attends the ophthalmology outpatient clinic in Kanpur, with yellowish white patch on the bulbar conjunctiva, near limbus. Which of the following is false regarding this condition? \nSelect and explain. \nA. There is elastotic degeneration of the substantia propria, B. Its always unilateral, C. The treatment is excision, D. May rarely undergo conversion into pterygium', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The condition described here is typical presentation of Pinguecula which is usually bilateral. Though treatment is not routinely required, it can be excised. Ref: A K Khurana, 2nd Edition, Page 105.', 'role': 'assistant'}]