COL8A2 and Fuchs endothelial corneal dystrophy: Exome data generated from the Exp- FECD cases utilised in this transcriptomic work were analysed for the presence of variants in any previously FECD-associated genes, such as TCF4, COL8A2, SLC4A11, ZEB1, and AGBL1 [4], to identify any potential underlying genetic cause.