Table 2

Scores for symptoms and global discomfort index (mean (SD)) of patients of both groups

Time (days)	Burning	Foreign body sensation	Dryness	Mucous discharge	Itching	Photophobia	Discomfort index
*p <0.001 v time 0 starting from day 15; †p = 0.0002 v time 0 starting from day 30; §p = 0.02 v group 2 patients at the same period of observation.
Group 1: hypotonic 0.4% sodium hyaluronate
0	2.4 (0.8)	2.7 (0.5)	2.4 (0.5)	1.9 (0.5)	1.3 (1.1)	1 (0.8)	11.7 (3.1)
15	1.4 (0.5)*	1.2 (0.8)*	1.4 (0.9)*	1 (0.8)*	0.4 (0.5)*	0.6 (0.5)	6 (2.2)*§
30	0.5 (0.5)	0.6 (0.5)	0.3 (0.5)	0.4 (0.5)	0.2 (0.4)	0.2 (0.4)†	2.3 (1.4)
90	0.3 (0.5)	0.5 (0.5)	0.2 (0.4)	0.3 (0.5)	0.1 (0.4)	0.1 (0.3)	1.6 (1.2)
Group 2: isotonic 0.4% sodium hyaluronate
0	2.2 (0.6)	2.6 (0.5)	2.4 (0.7)	1.8 (0.4)	1.3 (0.9)	1 (0.6)	11.4 (1.8)
15	1.4 (0.8)*	1.5 (0.7)*	1.6 (0.8)*	1.2 (0.6)*	0.6 (0.5)*	0.7 (0.6)	7.5 (1.7)*
30	0.7 (0.5)	0.7 (0.5)	0.4 (0.5)	0.5 (0.5)	0.3 (0.5)	0.3 (0.5)†	3 (1)
90	0.5 (0.5)	0.5 (0.5)	0.3 (0.5)	0.4 (0.5)	0.2 (0.4)	0.2 (0.4)	2.1 (1)