This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ocular motility and squint, Subject name: Ophthalmology
[{'content': 'All are true in paralytic squint except \nSelect and explain. \nA. Diplopia, B. False projection, C. Compensatory head posture, D. Primary detion is equal to secondary detion', 'role': 'user'}, {'content': "Answer: D \nExplanation: Clinical features of paralytic squint are : Symptoms : Diplopia Confusion Nausea and veigo Ocular detion Signs : Primary detion Secondary detion- It is greater than Primary detion due to the fact that the strong impulse of innervation required to enable the eye with paralysed muscle to fix is also transmitted to the yoke muscle of the sound eye resulting in a greater amount of detion. This is based on Hering's law of equal innervation of yoke muscles. Restriction of ocular movement Compensatory head posture False projection or orientation Ref;A.K.Khurana; 6th Edition; Page no:354", 'role': 'assistant'}]