This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lens, Subject name: Ophthalmology
[{'content': 'Wavelength of Nd: YAG laser \nSelect and explain. \nA. 1040 nm, B. 1040 mm, C. 1064 cm, D. 1064 nm', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. (d) 1064 nmRef: Khurana 6/e, p. 461Wavelength of laser is measured in nm and Nd:YAG Laser is 1064 nm. Nd:YAG Laser is used for posterior capsulotomy and peripheral iridotomy.', 'role': 'assistant'}]