Post-LASIK striae. A, Retroillumination of multiple horizontal parallel macrostriae in the visual axis from mild flap dislocation. B, Diffuse illumination of visually insignificant microstriae in the visual axis after LASIK. C, Numerous randomly directed microstriae on fluorescein staining. These striae resemble multiple cracks in a piece of ice, are apparent on the first postoperative day after LASIK, and usually resolve without intervention.