Figure 2.

Mean change in OSDI scores at day 30 by baseline OSDI score.

Notes: OSDI scores ≥18–32 were grouped as mild/moderate; scores >32–65 were grouped as severe. P=0.004 for LT UD compared with LT MD in the mild/moderate group; error bars represent SEM.

Abbreviations: LT UD, preservative-free unit-dose lipid tear formulation; AqT UD, preservative-free unit-dose aqueous tear formulation; LT MD, preserved multidose lipid tear formulation; AqT MD, preserved multidose aqueous tear formulation; OSDI, Ocular Surface Disease Index; SEM, standard error mean.