This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Optics and Errors of Refraction, Subject name: Ophthalmology
[{'content': 'Power of normal eye is: \nSelect and explain. \nA. +6D, B. +10D, C. +16D, D. +60D', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Total dioptric power of this schematic eye is 58.64 [?] 60D Refractive Power of Cornea =+45 D Refractive Power of Lens =+15 D', 'role': 'assistant'}]