Additional COL8A2 missensemutations have been identified in late-onset FECD patients, although their roleremains unclear due to conflicting results [16]–[18].Mutations in two additional genes that play roles in other corneal endothelialdystrophies have also been suggested to cause FECD. The gene discussed is COL8A2; the disease is Fuchs endothelial corneal dystrophy.