Figure 3.

Tear break-up time (TBUT) and tear meniscus height (TMH). Notes: ^∗ TBUT at D15 (4.2 ± 1.8 s), D45 (5.0 ± 1.9 s), and D75 (4.5 ± 2.5 s) were significantly increased compared to that at the baseline (2.2 ± 1.5 s) (P < 0.01). Between the visits of D15 and D45, TBUT continuously increased while reaching no statistic difference (P = 0.07). Between the visits of D45 and D75, no significant difference was observed (P = 0.51). No significant difference was found in the assessment of upper and lower TMH in all visits. Statistical analysis was performed with paired t-test with the Bonferroni correction.