Fig. 12 Relaxing incisions are placed in the graft–host interface along the steepest meridian as indicated here by a keratometry reading of 52.00 × 60 degrees. (From Krachmer JH, Fenzl RE: Surgical correction of high postkeratoplasty astigmatism. Arch Ophthalmol 98:1400, 1980. Copyright © 1980, American Medical Association)