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Cornea & External Diseases

















Surgery & Complications
Microstriae usually causes no visual significant.
Flap Striae

  • Clinical features:
    • Symptoms:
      • 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.
  • Treatment:
    • 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.

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Macrostirae demonstrating gross linear folds in the visual axis.
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