In a case of hypeensive uveitis, most useful drug to reduce intraocular pressure is:
**Core Concept**
Hypertensive uveitis is a condition characterized by inflammation of the uvea, the middle layer of the eye, leading to increased intraocular pressure (IOP). The primary goal of treatment is to reduce IOP and prevent vision loss.
**Why the Correct Answer is Right**
In hypertensive uveitis, the most effective way to reduce IOP is by using a carbonic anhydrase inhibitor. These drugs work by inhibiting the enzyme carbonic anhydrase, which is responsible for producing aqueous humor in the eye. By reducing the production of aqueous humor, carbonic anhydrase inhibitors decrease the pressure within the eye. Examples of carbonic anhydrase inhibitors include acetazolamide, dorzolamide, and brinzolamide.
**Why Each Wrong Option is Incorrect**
* **Option B:** This option is incorrect because alpha agonists, such as brimonidine, are primarily used to reduce IOP by decreasing aqueous humor production and increasing uveoscleral outflow. However, they are not the most effective option in hypertensive uveitis.
* **Option C:** This option is incorrect because prostaglandin analogs, such as latanoprost, primarily work by increasing uveoscleral outflow of aqueous humor. While effective for glaucoma, they may not be the best choice in hypertensive uveitis.
**Clinical Pearl / High-Yield Fact**
Carbonic anhydrase inhibitors are particularly useful in cases of hypertensive uveitis because they can rapidly reduce IOP and prevent vision loss. However, they can cause systemic side effects, such as hypokalemia and metabolic acidosis, so monitoring is essential.
**Correct Answer: C. Acetazolamide**