**Core Concept**
Anterior uveitis with secondary glaucoma requires careful management to prevent further complications. Mydriatics are often used to reduce pain and prevent synechiae, but they can also increase intraocular pressure in patients with glaucoma. The choice of mydriatic agent is crucial in this scenario.

**Why the Correct Answer is Right**
Pilocarpine is a muscarinic receptor agonist that can be used to reduce intraocular pressure in patients with glaucoma. In contrast, other mydriatic agents such as atropine and homatropine are anticholinergic and can increase intraocular pressure, exacerbating secondary glaucoma. In anterior uveitis, atropine is often used to dilate the pupil and reduce pain, but it should be used with caution in patients with glaucoma.

**Why Each Wrong Option is Incorrect**
**Option A:** Atropine is an anticholinergic that can increase intraocular pressure and worsen secondary glaucoma.
**Option B:** Homatropine is another anticholinergic that can have a similar effect to atropine in increasing intraocular pressure.
**Option C:** Cyclopentolate is an anticholinergic that can also increase intraocular pressure and exacerbate secondary glaucoma.

**Clinical Pearl / High-Yield Fact**
In patients with anterior uveitis and secondary glaucoma, miotics such as pilocarpine may be used to reduce intraocular pressure, while mydriatics like atropine should be used with caution.

**Correct Answer: C. Cyclopentolate is an anticholinergic that can increase intraocular pressure and exacerbate secondary glaucoma.