Figure 4.

Histological analysis of suture biocompatibility. Representative images of hematoxylin and eosin stained sections of (A) untreated corneal tissue and tissue surrounding (B) 4% PEG/PLLA/levofloxacin, (C) 8-0 permanent nylon (Ethilon), and (D) 8-0 absorbable PLGA (Vicryl) sutures following implantation for 1 week in Sprague-Dawley rat corneas. The electrospun suture elicited a tissue reaction comparable to that of nylon, while immune cell infiltration was observed in the vicinity of the Vicryl suture.