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': 'All are true about retinitis pigmentosa EXCEPT – \nSelect and explain. \nA. Genetic inheritance (X–linked), B. Early diagnosis and treatment, C. Visual acuity not diminished till late in course, D. Associated with systemic abnormalities', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Treatment is eminently unsatisfactory since nothing appears to have a decided influence upon the course of the disease.\nRetinitis pigmentosa shows all three pattern of inheritance, i.e., autosomal recessive (most common), autosomal dominant, sex- linked (X- linked recessive).\nInitially there is loss of peripheral vision and central vision is preserved till late.\nRetinitis pigmentosa is assoicated with many systemic syndromes.', 'role': 'assistant'}]