FIG. 4.

Photomicrograph of the surgical site of an animal from the group that received BPUIs (left) showing a silastic tube in the subconjunctival space (arrow) above the implant (asterisk). The implant was attached to the juxtascleral space and surrounded by a tissue reaction. Note the formation of a fibrous capsule between the implant and the silastic tube (white arrowhead) and around the edge of the implant (black arrowhead) (hematoxylin & eosin, original magnification 25X). Photomicrographs showing Sirius Red staining of areas that are adjacent to the implants. Note the collagen deposits, which are stained in red, and the numerous fibroblasts in both the BPUI and the PUI animals (center and right, respectively) (Sirius Red, original magnification 200X). Color images available online at www.liebertpub.com/jop