A recent study that examined the expression of Selectins in the retina and choroid of AMD patients and compared the allele and genotype frequencies between AMD patients and controls, demonstrated that a single SNP (Single Nucleotide Polymorphism) located within an intron of SELP gene (rs3917751) is statistically associated with dry AMD in their study cohort. The gene discussed is SELP; the disease is age-related macular degeneration.