## **Core Concept**
Lattice degeneration is a retinal condition characterized by areas of retinal thinning, often seen in the peripheral retina. It is a significant risk factor for retinal detachment. This condition is commonly associated with myopia.

## **Why the Correct Answer is Right**
The correct answer, **C. Myopia**, is right because lattice degeneration is strongly associated with myopia. In myopic eyes, the elongation of the eyeball can lead to stretching and thinning of the retina, creating areas of lattice degeneration. These areas are prone to retinal tears and holes, which can lead to retinal detachment if not treated.

## **Why Each Wrong Option is Incorrect**
- **Option A:** Hypermetropia is not typically associated with lattice degeneration. In fact, hypermetropia is less likely to cause the retinal thinning seen in lattice degeneration.
- **Option B:** Astigmatism, while it can be associated with myopia, is not directly linked to lattice degeneration as a causative factor.
- **Option D:** Presbyopia is an age-related condition affecting the lens of the eye, leading to difficulty focusing on close objects. It is not directly related to lattice degeneration.

## **Clinical Pearl / High-Yield Fact**
A key clinical pearl is that patients with lattice degeneration are at increased risk of retinal detachment. Regular ophthalmologic follow-up is crucial, especially in myopic patients, to monitor for signs of retinal tears or detachment.

## **Correct Answer: C. Myopia**