What is used to categorize drusen aside from size and anatomic location?

Drusen can indeed be categorized utilizing various characteristics, and one significant factor aside from size and anatomic location is the borders or boundaries of the drusen. Analyzing the borders helps in distinguishing different types of drusen that may have clinical relevance, such as differentiating between hard drusen with well-defined boundaries and soft drusen with indistinct edges. The clarity of these borders can give insight into the nature and potential implications of the drusen on retinal health.

By categorizing drusen based on their borders, healthcare professionals can better understand the progression of conditions like age-related macular degeneration (AMD). This is critical for assessing risk and guiding management decisions. Other attributes, while important, do not serve as primary categorization features in the same way that borders do.