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': 'Diplopia is not a presenting feature in - \nSelect and explain. \nA. Manifest squint, B. Paralytic squint, C. Latent squint, D. Anisometropia', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Paralytic squint (a type of manifest squint) is the most common cause of diplopia. Anisometropia can also cause diplopia.\nLatent squint and concomitant squint do not cause diplopia.', 'role': 'assistant'}]