**Core Concept**
Topical mitomycin-C is an antineoplastic agent used in ophthalmology for its antimetabolic properties, which inhibit DNA synthesis and function. It is particularly useful in procedures that require a reduction in scarring or fibrosis.

**Why the Correct Answer is Right**
Mitomycin-C works by cross-linking DNA strands, thereby inhibiting the activity of DNA topoisomerase II and DNA polymerase. This results in the inhibition of DNA synthesis and function, ultimately leading to cell death. In ophthalmology, mitomycin-C is used to reduce scarring and fibrosis during procedures such as trabeculectomy for glaucoma surgery and pterygium excision. The antimetabolic effects of mitomycin-C help to prevent the proliferation of fibroblasts and subsequent scarring.

**Why Each Wrong Option is Incorrect**
**Option A:** Mitomycin-C is not typically used for its antimicrobial properties, as it is not effective against a broad range of bacteria and viruses.
**Option B:** While mitomycin-C is used in ophthalmology, it is not primarily used for its anti-inflammatory effects, which are more relevant to corticosteroids.
**Option C:** Mitomycin-C is not commonly used in dermatology for skin cancer treatment, as its use is limited to ophthalmic procedures.

**Clinical Pearl / High-Yield Fact**
When using topical mitomycin-C, it's essential to note that prolonged exposure can lead to corneal toxicity, so the duration of application should be carefully controlled.

**Correct Answer:** C.