**Core Concept**
The periphery of the retina is a critical area responsible for peripheral vision, and its visualization is essential for diagnosing retinal diseases. The periphery of the retina can be challenging to visualize due to its location and the presence of the ora serrata, which marks the junction between the retina and the ciliary body.

**Why the Correct Answer is Right**
The correct answer is **C. Indirect Ophthalmoscopy**. Indirect ophthalmoscopy is a technique used to visualize the periphery of the retina by using a condensing lens to produce a virtual image of the retina on a screen. This technique allows for a wider field of view and better visualization of the periphery of the retina. The use of a condensing lens and a retinoscope enables the examiner to see the periphery of the retina clearly, making it an essential tool for retinal examinations.

**Why Each Wrong Option is Incorrect**
* **Option A:** is not relevant to the visualization of the periphery of the retina.
* **Option B:** does not provide a clear visualization of the periphery of the retina.
* **Option D:** is not a valid option for visualizing the periphery of the retina.

**Clinical Pearl / High-Yield Fact**
To visualize the periphery of the retina effectively, use a 20D condensing lens and a 28D lens for the retinoscope. This will allow for a clear and detailed image of the periphery of the retina.

**Correct Answer:** C. Indirect Ophthalmoscopy