The infiltration of 22 kinds of immune cells in these samples is summarized in Figure 6A and the subpopulations of immune cells identified by unsupervised hierarchical clustering are shown in Figure 6B. The violin plot showed that relative to normal control samples, lower proportions of resting NK cells (p = 0.004) and resting CD4 memory T cells (p = 0.016) were detected in AMD samples (Figure 6C). Here, CD4 is linked to age-related macular degeneration.