Peripheral endothelium and transition zone in normal human cornea. Light microscopic image of a healthy human cornea stained with hematoxylin and eosin (H&E) (A). Posterior cornea periphery in detail, H&E-stained (B). Detail of the posterior corneal periphery immunoassayed for the corneal endothelial marker N-cadherin (red); nuclei are counterstained with DAPI (blue) (C). EP corneal epithelium, LI limbal area, ST stroma, EN peripheral endothelium, TZ transition zone, TM trabecular meshwork. Scale bars: 100 μm (A), 20 μm (B, C).