What type of lesions are characterized by flat, scarring changes in the retina?

Inactive chorioretinitis lesions are indeed characterized by flat, scarring changes in the retina. This occurs as a result of previous inflammatory processes that have resolved but left behind fibrous scars. Over time, the acute inflammation seen in active chorioretinitis subsides, leading to the characteristic appearance of inactive lesions, which serve as a visual marker of past disease.

In this stage, the retina may exhibit changes such as atrophy, pigmentation, or cystic degeneration, reflecting the lesion's former activity. This contrast with active chorioretinitis, which is marked by edema, exudates, and potentially more complex and irregular patchy changes, as well as the presence of active inflammation.

Traumatic and neoplastic lesions tend to present differently, with traumatic lesions often associated with more acute presentations involving tears or detachment, and neoplastic lesions generally demonstrating irregular, infiltrative patterns rather than flat scars. Hence, the clear association of inactive chorioretinitis with flat, scarring changes makes it the correct choice.