This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cornea and sclera, Subject name: Ophthalmology
[{'content': 'Blue sclera is seen in all of the following conditions except (REPEATED) \nSelect and explain. \nA. Keratoconus, B. Marfans syndrome, C. Osteogenesis imperfecta, D. Rheumatoid ahritis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Blue sclera is not seen in Keratoconus It is seen in all conditions like Marfans syndrome Rheumatoid ahritis Osteogenesis imperfecta. Refer: Khurana 6th edition page number 144', 'role': 'assistant'}]