Fig. 2From: Femtosecond thin-flap laser assisted in situ keratomileusis for correction of post-penetrating keratoplasty ametropia: long-term outcomeThe double plot showing preoperative corneal astigmatism and postoperative refractive astigmatism at the corneal plane at month 12 (A) and month 81 (B). Each ring demonstrates 2 diopters of astigmatismBack to article page