Fig. 8From: Nanotechnology-based ocular drug delivery systems: recent advances and future prospectsA–C The fluorescein-staining photographs of rat corneas transplanted with HAM and PUTK/RH patch after alkali burn. D Mean fluorescence intensity. The corneal epithelial defects (green region) are marked by white arrows point to. n = 5,*P< 0.05Back to article page