TGFBI and granular corneal dystrophy type II: TGFBI‐linked corneal dystrophy is an autosomal dominant disorder, caused by mutations in the transforming growth factor β‐induced (TGFBI) gene on chromosome 5q31, while granular corneal dystrophy type 2 (GCD2) is only caused by an arginine to histidine substitution at codon 124 of the TGFBI gene.1