What are the risks, complications and side effects of PRK?

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  A American Academy of Ophthalmology's EyeSmart answered

  Like any other surgery, PRK has risks and complications that should be carefully considered. Possible complications of PRK include undercorrection or overcorrection, both of which can often be improved with eyeglasses, contact lenses, or an additional laser surgery.
  Other possible complications of PRK include: 

  • glare and halos around lights, particularly at night;
  • corneal scarring and corneal haze;
  • corneal infection.

  Most complications can be treated without any loss of vision. Permanent vision loss is very rare. There is an extremely small chance that your vision will not be as good after surgery as before, even with eyeglasses or contact lenses. This is called a loss of best-corrected vision.
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