What characterizes large drusen?

Large drusen are characterized as being 125 micrometers or greater in diameter. Drusen are small yellowish-white deposits that form in the retina, and their size can indicate the degree of risk for developing age-related macular degeneration (AMD). The classification of drusen size is important in clinical practice for monitoring and managing patients at risk for AMD progression.

Drusen that measure 125 micrometers or larger are often associated with advanced forms of AMD and can serve as a significant indicator of increased risk for complications, such as choroidal neovascularization (CNV). Understanding the size classifications helps eye care professionals assess the health of the retina and the potential for disease progression.