NFIB and keratoconus: Our study was unable to replicate the suggested association by Sahebjada et al. [39] between SNPs rs1324183 (MPDZ-NF1B, chr9:13557491) (OR = 1.68) and rs9938149 (BANP-ZNF49, chr16:88331640) (OR = 1.47) with KC.