Corneal dystrophy, true is –
**Core Concept**
Corneal dystrophies are a group of **genetic disorders** characterized by the accumulation of abnormal material in the **cornea**, leading to vision loss. They are typically **bilateral** and **symmetric**, affecting both eyes equally.
**Why the Correct Answer is Right**
Since the correct answer is not provided, let's discuss the general characteristics of corneal dystrophies. They are caused by **mutations in genes** responsible for corneal structure and function, such as the TGFBI gene. The abnormal material accumulated can be **lipofuscin**, **amyloid**, or other substances, depending on the specific type of dystrophy.
**Why Each Wrong Option is Incorrect**
**Option A:** Without the specific option text, it's impossible to provide a detailed explanation.
**Option B:** Similarly, without the text, we can't assess its accuracy.
**Option C:** This option would be incorrect if it described a condition that is not a corneal dystrophy.
**Option D:** This option would be wrong if it mentioned a characteristic not typical of corneal dystrophies.
**Clinical Pearl / High-Yield Fact**
A key point to remember is that corneal dystrophies can be classified based on the layer of the cornea affected, such as **epithelial**, **stromal**, or **endothelial** dystrophies.
**Correct Answer:**