This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Squint, Subject name: Ophthalmology
[{'content': 'True about paralytic squint: \nSelect and explain. \nA. Uniocular diplopia, B. Binocular diplopia, C. Diminished visual acuity, D. positive Force duction test', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Paralytic squint- Ocular detion resulting from complete or incomplete paralysis of one or more extraocular muscles. Type of Incomitant Squint Secondary detion is greater than primary. Diplopia (more often binocular) - it is main symptom of paralytic which is more marked in the field of action of paralyzed muscle. Visual acuity is normal - there is no amblyopia as usually the paralytic squint develops in adults when visual acuity has already developed. Force duction test is negative indicating no restriction of muscles', 'role': 'assistant'}]