Few studies have examined the prevalence of FECD on a large scale. First assessed in a clinical setting,<unk>  himself estimated the occurrence of<unk> a epithelialis corneae to be one in every 2000 patients; a rate that is likely reflective of those who progress to advanced disease. Cross-sectional studies suggest a relatively higher prevalence of disease in European countries relative to other areas of the world.<unk>  rarely affects individuals under 50 years of age.
Fuchs' dystrophy
Tangier disease
Bayoud disease
Thiel–Behnke dystrophy
Ollier disease
Akureyri disease
Upington disease
Degos disease