**Core Concept**
Dacryocystorhinostomy (DCR) is a surgical procedure aimed at restoring the flow of tears from the lacrimal sac to the nasal cavity by creating a new passage. It is typically performed to treat nasolacrimal duct obstruction, leading to chronic tearing and eye irritation.

**Why the Correct Answer is Right**
In DCR, the surgeon creates a new pathway for tear drainage by removing the bone and nasal mucosa between the lacrimal sac and the nasal cavity. This procedure is generally safe and effective, but certain conditions may contraindicate its performance. The correct answer is likely related to a condition where the risks associated with DCR outweigh its benefits.

**Why Each Wrong Option is Incorrect**
**Option A:** Active infection in the lacrimal sac or surrounding tissues is a contraindication for DCR, as it may lead to postoperative complications such as abscess formation or spread of infection. Performing surgery in an infected area can worsen the condition.
**Option B:** History of radiation therapy to the orbit or face is a contraindication for DCR, as it can compromise the blood supply to the lacrimal sac and surrounding tissues, making the procedure more challenging and increasing the risk of complications.
**Option C:** History of previous DCR surgery is not typically a contraindication, but rather an indication for a revision DCR procedure. However, if the previous surgery resulted in significant scarring or tissue damage, it may be a relative contraindication.

**Clinical Pearl / High-Yield Fact**
It's essential to assess the patient's overall health and medical history before performing DCR, as certain conditions, such as active infection or radiation therapy, can significantly increase the risk of postoperative complications.

**Correct Answer:** C.