Among the various reported KC-associated candidate genes are VSX1 (Visual System Homeobox 1), MIR184 (microRNA 184) and DOCK9 (Dedicator of Cytokinesis 9), in addition to other candidate single nucleotide polymorphisms (SNPs) in various other genetic loci that need further investigations [13, 14, 16, 28]. The gene discussed is VSX1; the disease is keratoconus.