From: Iontophoresis Transcorneal Delivery Technique for Transepithelial Corneal Collagen Crosslinking With Riboflavin in a Rabbit Model Invest. Ophthalmol. Vis. Sci.. 2016;57(2):594-603. doi:10.1167/iovs.13-12595 Figure Legend: Corneal epithelium. Cytologic features of (A) a cornea after iontophoresis and (C) of a control cornea. H&E, magnification: ×200. Immunohistochemistry using antiactive caspase 3 antibody in (B) a cornea after iontophoresis and (D) in a control cornea. Active caspase 3 antibody, magnification: ×200. Arrows show few active caspase 3–positive epithelial cells in red. Date of download: 9/22/2017 The Association for Research in Vision and Ophthalmology Copyright © 2017. All rights reserved.