Figure 3: (a) Airflow-exposure-induced changes in blink frequencies are presented for normal and short tear film breakup time dry eye (SBUT dry eye) groups. (b) Changes in blink frequencies before and after airflow exposure are shown. Blink frequency increased significantly in SBUT dry eyes ( 𝑃 = 0 . 0 3 9 , Wilcoxon signed-rank test), while there was no significant change in the blink frequencies of normal eyes. SBUT dry eye: short tear film breakup time dry eye.