This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lens, Subject name: Ophthalmology
[{'content': 'An infant with intolerance to breast feed, vomiting and diarrhoea develops cataract. Which of the following is the most likely diagnosis? \nSelect and explain. \nA. Lowe syndrome, B. Galactosemia, C. Fabry disease, D. Congenital hypoglycemia', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) GalactosemiaRef: Kanski 7/e, p. 301Galactosemia - becomes manifest during infancy with features of failure to thrive, lethargy, vomiting and diarrhea. Reducing substance is found in urine after drinking milk.Cataract develops (oil droplet central opacity) within first few days to weeks of life. The exclusion of galactose (milk and milk products) from the diet will prevent the progression of cataract and may reverse early lens changes.', 'role': 'assistant'}]