**Core Concept**
Angle closure glaucoma occurs when the iris blocks the drainage angle of the eye, leading to increased intraocular pressure (IOP). The fellow eye is at risk of developing angle closure glaucoma due to anatomical similarities, making prophylactic treatment necessary.

**Why the Correct Answer is Right**
The correct approach to prophylactic treatment involves identifying the underlying anatomical risk factors, such as a shallow anterior chamber, a narrow angle, or a plateau iris. In these cases, medications like pilocarpine or atropine may be used to alter the shape of the iris and the angle, thereby reducing the risk of angle closure. Additionally, laser peripheral iridotomy (LPI) is a common procedure used to create a hole in the iris, allowing for drainage and reducing IOP.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not address the underlying anatomical risk factors associated with angle closure glaucoma.
**Option B:** This option is incorrect because it does not provide a clear mechanism for reducing IOP and preventing angle closure.
**Option C:** This option is incorrect because it is not a standard treatment for prophylactic management of angle closure glaucoma.

**Clinical Pearl / High-Yield Fact**
A key point to remember is that the presence of a shallow anterior chamber is a significant risk factor for angle closure glaucoma, and prophylactic treatment should be considered in patients with this anatomical feature.

**Correct Answer:** C. Laser peripheral iridotomy