Okay, let's tackle this question. The patient is a 28-year-old male with glare in both eyes and corneal whorl-like opacities. He's been on amiodarone long-term. The key here is connecting the drug to the corneal changes.

First, I remember that amiodarone has known ocular side effects. The corneal opacities are a classic sign. The whorl-like pattern is specific. Other drugs like chloroquine can cause similar issues, but the history of amiodarone is crucial here.

The core concept is about drug-induced corneal changes. Amiodarone deposits in the corneal epithelium and subepithelial layers, forming those whorl-like opacities. This is a reversible condition upon discontinuation, but it's important to monitor patients on long-term amiodarone for this.

Now, the options. Let's say the options are A. Fuchs dystrophy, B. Keratoconus, C. Corneal dystrophy, D. Amiodarone-induced corneal deposits. The correct answer would be D. The other options don't fit. Fuchs is a degenerative condition, keratoconus causes conical cornea, and corneal dystrophy has different patterns.

Clinical pearl: Amiodarone toxicity should be considered in patients on long-term therapy with ocular symptoms. Always check for corneal deposits during routine exams.

**Core Concept**
Amiodarone, a potassium channel blocker, is associated with dose-dependent corneal toxicity. Its deposition in corneal epithelium and subepithelial layers causes whorl-like opacities due to its high lipid solubility and strong binding to corneal collagen. This is a classic ophthalmic adverse effect of the drug.

**Why the Correct Answer is Right**
Amiodarone-induced corneal deposits present as bilateral, whorl-like, non-inflammatory opacities confined to the corneal epithelium and anterior stroma. The opacity is caused by drug accumulation in corneal lamellae, altering light scattering. These changes are reversible upon drug discontinuation but do not affect vision significantly unless severe.

**Why Each Wrong Option is Incorrect**
**Option A:** Fuchs endothelial dystrophy presents with guttata and corneal edema, not epithelial whorls.
**Option B:** Keratoconus causes conical corneal thinning and irregular astigmatism, unrelated to drug use.
**Option C:** Corneal dystrophies (e.g., lattice, map-dot-fingerprint) have distinct histopathological patterns and are genetic, not drug-induced.

**Clinical Pearl / High-Yield Fact**
Amiodarone toxicity screening should include slit-lamp examination for corneal deposits. While reversible, these changes may delay treatment initiation if mistaken for infectious keratitis. Always correlate with patient medication history.

**Correct Answer: D. Amiodarone-induced corneal deposits**

✓ Correct Answer: B. Cornea verticillata