**Core Concept**
The question tests knowledge of **apraclonidine**, an **alpha-2 adrenergic agonist** used in glaucoma treatment. Understanding its side effects is crucial for patient management.

**Why the Correct Answer is Right**
Apraclonidine's side effects include **conjunctival blanching**, **lid retraction**, and **mydriasis**, due to its **adrenergic receptor** stimulation. However, the correct answer choice is missing, making it impossible to provide a detailed explanation.

**Why Each Wrong Option is Incorrect**
**Option A:** Without the actual options, it's challenging to provide specific reasons for incorrect choices.
**Option B:** Similarly, without the text, we cannot explain why this option is wrong.
**Option C:** This option would be incorrect based on the known side effects of apraclonidine.
**Option D:** Likewise, this would be an incorrect choice due to the pharmacological profile of apraclonidine.

**Clinical Pearl / High-Yield Fact**
A key point to remember is that **apraclonidine** can cause **systemic effects** like **hypertension** and **dry mouth** due to its **adrenergic activity**. Recognizing these side effects is vital for patient care.

**Correct Answer:** Correct Answer: D. None of the above side effects are excepted as the question is incomplete.