This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Glaucoma, Subject name: Ophthalmology
[{'content': 'Based on the perimtery result print-out, what is the most likely diagnosis? \nSelect and explain. \nA. Retinitis pigmentosa, B. Open angle glaucoma, C. Pituitary adenoma, D. Temporal lobe infarct', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) Open angle glaucomaRef: Shields 6/e, p. 107Arcuate scotoma or Bjerrum scotoma is seen in the gray scale print out - thus a case of open angle glaucoma', 'role': 'assistant'}]