Figure 3. Shown here are samples of CFH sequencing results from three representative retinal DNA samples. Position 166 indicates the location of the CFH Y402H single nucleotide polymorphism (SNP). A: The SNP position (166 bp) indicated with a star exhibited a wild-type TT allele. B: The SNP position (16 6bp) indicated with a star exhibited a heterozygous TC allele. C: The SNP position (166bp) indicated with a star exhibited a homozygous CC allele. These sample results showed that the proposed method isolated DNA of quality sufficient for genotyping.