Mmp Expression in Leaking Filtering Blebs and Tears after Glaucoma Filtering Surgery

Glaucoma filtering surgery may be compromised by cystic blebs which develop more frequently when anti-metabolites are used to arrest wound healing. Matrix metalloproteinases (MMPs) and the naturally occurring tissue inhibitors of metalloproteinases (TIMPs) are essential in connective tissue remodeling and wound healing. This study aimed to determine whether filtering blebs display increased expression of MMP-2, MMP-9, TIMP-1 and TIMP-2, and whether it is reflected in tear fluid.