Fig. 2

The bacterial diversity and richness of the conjunctival sac microbiota in two groups. A-D: Violin plots representing alpha diversity of different individuals in the two groups (P > 0.05, Mann-Whitney U test). E-F: Principal coordinates analysis plots. Each point represents a sample, and the points of the same color are from the same group. The closer the distance between two points, the smaller the difference in community composition between the two groups (P<0.05, ANOSIM test). G: The Venn diagram illustrates the overlap of OTUs in the conjunctival microbiota among the two microhabitats. L: the OK lens group, N: the non-wearer group