**Core Concept**
Atropine poisoning is a condition that occurs due to the excessive ingestion or administration of atropine, a medication that belongs to the anticholinergic drug class. It acts by blocking the action of acetylcholine at muscarinic receptors in the central and peripheral nervous system, leading to various systemic effects.

**Why the Correct Answer is Right**
Atropine poisoning is characterized by symptoms such as dry mouth, blurred vision, tachycardia, urinary retention, and mydriasis (dilated pupils). The muscarinic receptor blockade leads to decreased parasympathetic tone, resulting in these systemic effects. Additionally, atropine poisoning can cause confusion, delirium, and hallucinations due to its central nervous system effects.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because atropine poisoning does indeed cause dry mouth and blurred vision, which are characteristic features of anticholinergic toxicity.
**Option B:** This option is incorrect because tachycardia is a common feature of atropine poisoning due to the blockade of parasympathetic tone, which normally helps to slow down heart rate.
**Option C:** This option is incorrect because mydriasis (dilated pupils) is a characteristic feature of atropine poisoning due to the blockade of muscarinic receptors in the eye.

**Clinical Pearl / High-Yield Fact**
It's essential to note that atropine poisoning can be treated with physostigmine, a cholinesterase inhibitor that helps to counteract the effects of atropine by increasing acetylcholine levels in the synaptic cleft.

**Correct Answer: D**