Fig. 2From: Changes in central corneal thickness and refractive error after thin-flap laser in situ keratomileusis in Chinese eyesChanges of spherical equivalents (in diopters, D) for up to 6 months after surgery. From 1 week (W) postsurgery, there was a myopic shift over time to 6 months (M). Pre-op = preoperative; Post = postoperative. Error bars indicate mean ± SDBack to article page