This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Retina, Subject name: Ophthalmology
[{'content': 'Method used to examine periphery of retina: \nSelect and explain. \nA. Direct ophthalmoscopy, B. Retinoscopy, C. Indirect ophthalmoscopy, D. None', 'role': 'user'}, {'content': 'Answer: C \nExplanation: - With Indirect ophthalmoscope Field of view is much larger & Examination of peripheral retina up to ora serratais possible. - Used along with scleral indentation to obtain ora serrata and pars plana visualization in difficult situations - Image formed is real & inveed - Feild of vision = 8DD (1DD= 1.5mm) - Convex lens of +20 D is used, commonly USES- in periphral Retinal breaks , Retinal detachement ROP evaliation', 'role': 'assistant'}]