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hiba4ever hiba4ever
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6 years ago
What procedure removes scar tissue from the cornea with an excimer laser?
 
  a. Refractive keratoplasty
  b. Phototherapeutic keratoplasty
  c. Radial keratotomy
  d. Keratophakia
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wrote...
6 years ago
ANS: B
In phototherapeutic keratoplasty (PTK), scar tissue is removed from the cornea with an excimer laser. PTK restores vision that has been blocked by scars from infection, injury, or an inherited condition.
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