**Core Concept**
Arachidonic acid derivatives are a group of lipid compounds involved in various physiological and pathological processes. They are formed by the action of cyclooxygenase (COX) enzymes on arachidonic acid, leading to the production of prostaglandins, prostacyclins, and thromboxanes. In the context of glaucoma, one specific arachidonic acid derivative is used to reduce intraocular pressure.

**Why the Correct Answer is Right**
The correct answer is a prostaglandin F2α analogue, which is used in the treatment of glaucoma. This derivative acts by increasing the outflow of aqueous humor from the eye, thereby reducing intraocular pressure. The mechanism involves the activation of prostaglandin F2α receptors in the ciliary body, leading to the relaxation of smooth muscle cells and increased aqueous humor outflow. This results in decreased intraocular pressure and reduced risk of glaucoma progression.

**Why Each Wrong Option is Incorrect**
* **Option A:** This is incorrect because it is not a known arachidonic acid derivative used in the treatment of glaucoma.
* **Option B:** This is incorrect because it is primarily used as a nonsteroidal anti-inflammatory drug (NSAID) and not for glaucoma treatment.
* **Option D:** This is incorrect because it is not a commonly used arachidonic acid derivative in ophthalmology.

**Clinical Pearl / High-Yield Fact**
When treating glaucoma, prostaglandin F2α analogues like the correct answer should be used with caution in patients with uveitic glaucoma, as they may exacerbate inflammation.

**Correct Answer:** C. Bimatoprost