IL9 and age-related macular degeneration: The results of the frequencies of haplotypes among patients with early AMD and controls have shown that haplotypes A-G-C-G-G and G-A-T-A-T of IL-9 SNPs (rs1859430, rs2069870, rs11741137, rs2069885, and rs2069884) are associated with the decreased odds of early AMD occurrence (OR = 0.49; 95% CI: 0.025-0.95; p = 0.035 and OR = 0.08; 95% CI: 0.01-0.61; p = 0.015, respectively).