Fig. 11 Schematic example of the single continuous suture. Ten diopters (50.00 D-40.00 D) of postkeratoplasty astigmatism are present at axis 90 degrees. By using straight tying forceps at the slit lamp, loose suture from the horizontal axis is gently pulled into the vertical axis where suture tension is high. Arrowhead represents the direction of individual suture pull to reduce suture tension in tight meridian. Bowed arrow represents general direction of suture adjustment. (From Van Meter WS, Gussler JR, Soloman KD, Wood TO: Postkeratoplasty astigmatism control. Ophthalmology 98:179, 1991, with permission)