Fig. 2

The frequency of female student that does not smoke and does not use eye drops (fa) was high, and the mean OSDI score was the lowest (26 points). In the opposite side, we can see the female student that smokes and uses eye drops (fc) with the higher OSDI score (46 points), and the lowest frequency; and between both female students that smoke and do not use eye drops (fb) with an OSDI score of 30 points