How many people are affected by Fuchs endothelial dystrophy ?
The late-onset form of Fuchs endothelial dystrophy is a common condition, affecting approximately 4 percent of people over the age of 40. The early-onset variant of Fuchs endothelial dystrophy is rare, although the exact prevalence is unknown.  For reasons that are unclear, women are affected with Fuchs endothelial dystrophy somewhat more frequently than men.