What is a characteristic feature of Geographic Atrophy progression?

The rate of enlargement of lesions is a characteristic feature of Geographic Atrophy (GA) progression. Geographic Atrophy is a form of advanced age-related macular degeneration (AMD) characterized by the progressive degeneration of retinal pigment epithelium and photoreceptors. As the disease progresses, the lesions, or areas of atrophy, expand over time, which can be monitored through imaging techniques such as optical coherence tomography (OCT) or fundus photography.

This gradual enlargement indicates the continuing degeneration of retinal structures, and it often correlates with the potential for visual acuity decline, though this decline does not happen uniformly in all patients. Understanding this characteristic feature helps clinicians monitor the disease's progression and make informed decisions about intervention and management.

The other choices do not align with the typical progression of Geographic Atrophy. For example, while some patients may experience stable visual fields, this does not capture the ongoing changes that occur with GA. Similarly, consistent visual improvement and sudden loss of vision are not characteristic of the slow and insidious nature of Geographic Atrophy.