Fig. 4From: Analysis of the VSX1 gene in sporadic keratoconus patients from ChinaThe c.8326G > A heterozygous change of the VSX1 gene. The sequence of a normal control (a) included the nucleotide G at position 8326 in the third intron of VSX1. The variant sequence (b) showed a G to A heterozygous transition (arrow), which results in a c.8326G > A SNP changeBack to article page