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
Method used to examine periphery of retina: 
Select and explain. 
A. Direct ophthalmoscopy, B. Retinoscopy, C. Indirect ophthalmoscopy, D. None
C: Indirect ophthalmoscopy
Answer: C: Indirect ophthalmoscopy 
Explanation: - 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