Fig. 2From: Effects of lid debris debridement combined with meibomian gland expression on the ocular surface MMP-9 levels and clinical outcomes in moderate and severe meibomian gland dysfunctionChanges in matrix metalloproteinase-9 levels before and after eyelid debris debridement and meibomian gland expression in each patient. MMP-9 = matrix metalloproteinase-9Back to article page