Fig. 87. Alkali burn. Inset 1. Two weeks after alkali contact, extensive areas of necrosis of the skin and cornea are evident. Inset 2. At low magnification, a conjunctival flap (f) used as an attempt to treat the injury is evident. The ciliary body is necrotic, particularly that portion represented on the left of the section. (Hematoxylin-eosin stain; × 6.) Main figure. Higher magnification of the anterior segment shows iris necrosis and a regional loss of anterior lens epithelial cells. (Hematoxylin-eosin stain; × 16.)