## **Core Concept**
Degenerative myopia, also known as pathologic or malignant myopia, is a severe form of myopia that leads to significant ocular complications. It is characterized by progressive elongation of the eyeball, leading to thinning and stretching of the ocular tissues. One of the serious complications of degenerative myopia is related to the structural integrity of the eye.

## **Why the Correct Answer is Right**
The correct answer, **retinal detachment**, is a serious complication of degenerative myopia. In degenerative myopia, the extensive stretching and thinning of the eyeball lead to the development of **atrophic and degenerative changes in the retina**. These changes can cause retinal tears and holes, ultimately leading to retinal detachment, a condition where the retina separates from the underlying retinal pigment epithelium. This can result in sudden vision loss and requires immediate medical attention.

## **Why Each Wrong Option is Incorrect**
- **Option A:** While cataracts can be associated with myopia, they are not a direct and serious complication specific to degenerative myopia compared to retinal detachment.
- **Option B:** Glaucoma can be associated with myopia, but it is not as directly and severely linked to degenerative myopia as retinal detachment.
- **Option C:** This option is not provided, but based on the context, we focus on why the other options are incorrect.

## **Clinical Pearl / High-Yield Fact**
A key clinical pearl is that patients with degenerative myopia are at a high risk of developing **retinal detachment**, and regular ophthalmological follow-ups are crucial for early detection and prevention. A classic sign that might be tested is the presence of **"lacquer cracks"** in the retina, which are indicative of degenerative changes.

## **Correct Answer:** . **Retinal detachment**