Fig. 5. A. Preoperative appearance of a patient with the granular appearance of the Avellino variant of lattice dystrophy. Most of the opacities are superficial. B. Four days after excimer ablation, re-epithelialization has occurred. Most of the opacities are eliminated from the treatment zone. C. One month after surgery, dramatic improvement in central corneal clarity has occurred. (Steinert RF: Therapeutic keratectomy: Corneal smoothing. In Thompson FB, McDonnell PJ [eds]. Color Atlas and Text of Excimer Laser Surgery. New York: Igaku-Shoin, 1993:179)