Table 3 shows the distribution of corneal dystrophies among the different ethnicities, which suggests possible distinct ethnic clustering of several mutations, although sample size was small. GCD1 with R555W mutation was the most common dystrophy found in patients of Indian ethnicity, whereas LCD with R124C mutation was the prominent dystrophy amongst patients of Malay ethnicity. The Chinese population showed a heterogeneous mix of TGFBI corneal dystrophies, in which GCD1 was the most common, followed by GCD2, LCD and RBCD (Table 2). This evidence concerns the gene TGFBI and lattice corneal dystrophy type I.