- Fine "microstriae" usually do not affect vision
- "Macrostriae" in the visual axis may cause reduced vision due to optical aberrations and irregular astigmatism
- Signs: fine or gross, linear folds commonly seen in the corneal flap after LASIK.
- Causes: thin or large flap, excessive dehydration of the flap, high myopic or hyperopic correction and uneven smoothing of the corneal flap surface after the primary procedure.
- If identified early, the flap may be relifted, stretched, hydrated and gently smoothed to remove the striae.
- In recalcitrant cases, suture placement at the flap edge has been reported to be successful to remove the striae.