## **Core Concept**
Keratic precipitates (KPs) are collections of inflammatory cells deposited on the corneal endothelium, often associated with uveitis. The corneal endothelium is a single layer of cells lining the inner surface of the cornea.

## **Why the Correct Answer is Right**
The correct answer, **endothelium**, is right because keratic precipitates are specifically known to form on the endothelial layer of the cornea. This occurs due to the adhesion of inflammatory cells, such as lymphocytes and macrophages, to the endothelial surface in response to inflammation within the eye, particularly in conditions like uveitis.

## **Why Each Wrong Option is Incorrect**
- **Option A:** The **epithelium** is the outermost layer of the cornea, composed of stratified squamous epithelial cells. It is not the site where keratic precipitates are typically found.
- **Option B:** The **stroma** is the middle, thickest layer of the cornea, made up of highly organized collagen fibers and keratocytes. While it is a significant part of the cornea, KPs do not deposit here.
- **Option C:** There seems to be an error in the provided option; however, if referring to another layer, it's clear that KPs are not associated with the **Bowman's layer** or **Descemet's membrane** directly in the context provided.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that the presence of keratic precipitates is a significant indicator of intraocular inflammation, particularly posterior uveitis. The characteristics of KPs (such as their size, shape, and distribution) can provide clues about the underlying cause of the inflammation.

## **Correct Answer:** . **endothelium**