This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Ophthalmology
Periphery of retina is visualized by: 
Select and explain. 
A. Indirect ophthalmoscopy, B. Direct ophthalmoscopy, C. Goniocopy, D. Contact lens
A: Indirect ophthalmoscopy
Answer: A: Indirect ophthalmoscopy 
Explanation: A i.e. Indirect opthalmoscopy - Area of retina visualized by direct ophthalmoscopy is 2disc dioptersQ and by indirect ophthalmoscopy is 8 DD. Peripheral retina is visualized by indirect opthalmoscopy Q and biomicroscopy examination by Goldmann's three mirror contact lens.Q