**Core Concept**
Bacterial endophthalmitis is a severe infection of the inner eye, often caused by bacterial contamination during surgery. In this condition, the primary goal is to reduce inflammation and prevent further tissue damage, but the use of systemic steroids is a topic of debate due to their potential to suppress the immune response and worsen the infection.

**Why the Correct Answer is Right**
The correct answer is **C. Avoided**. Systemic steroids can suppress the immune response, making it harder for the body to fight off the infection. In bacterial endophthalmitis, the use of systemic steroids can lead to a worsening of the infection, increased risk of complications, and potentially even vision loss. This is because steroids can reduce the inflammatory response, which is often a necessary step in the body's attempt to clear the infection.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because systemic steroids are not typically used as a first-line treatment for bacterial endophthalmitis. In fact, their use can be counterproductive in this scenario.
* **Option B:** This option is incorrect because systemic steroids do not have a proven benefit in the treatment of bacterial endophthalmitis. In fact, their use can increase the risk of complications and worsen the infection.
* **Option D:** This option is incorrect because the use of systemic steroids is not generally recommended in the treatment of bacterial endophthalmitis. Their potential to suppress the immune response can make the infection worse.

**Clinical Pearl / High-Yield Fact**
In the treatment of bacterial endophthalmitis, it's essential to remember that the primary goal is to reduce inflammation and prevent further tissue damage. Systemic steroids should be avoided, and instead, the focus should be on aggressive antimicrobial therapy and surgical intervention to remove the infectious agent.

**Correct Answer: C. Avoided**