Fig. 6
From: Corneal surgery in keratoconus: which type, which technique, which outcomes?
Femtosecond laser assisted penetrating keratoplasty with a “Zig-Zag” edge profile (a, b: courtesy of Abbott Medical Optics, USA). Postoperative clinical picture (c) and an anterior segment OCT capture (d) where it is possible to appreciate the zig-zag edge profile at the host-donor interface with a perfect coalescence of the edges