Table 2. Summary of alpha diversity indices at a depth of 9,610 sequences per sample for control and treatment eyes at baseline.

	Control Eyes	Treatment Eyes	*P-value
Observed OTUs	235.1 ± 98.7	283.2 ± 152.0	0.532
Shannon	7.0 ± 0.8	6.9 ± 1.4	0.999
Chao1	236.0 ± 100.4	283.2 ± 162.0	0.519

Values represent averages with standard deviations.

*P-values determined by Wilcoxon matched-pairs signed-ranks test with significance level < 0.05.