What defines the size of small drusen?

The correct definition of small drusen indicates that they are 62 micrometers or less in diameter. Drusen are yellowish-white deposits found in the retina, and their size is crucial in determining the likelihood of progression to age-related macular degeneration (AMD). Small drusen are considered less than or equal to 62 micrometers because larger drusen can signify a more advanced stage of retinal disease. This specific measurement helps clinicians assess the risk for patients, as the presence of small drusen alone may not indicate significant vision loss or immediate need for intervention, while larger drusen may require closer monitoring and management.