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General anesthesia is not used. The cornea has no blood vessels and bleeding does not occur.
However, after surgery some patients experience the following symptoms:
- Fluctuating vision, including halos around lights
- Under-correction or over-correction
- Infections of the cornea which can result in permanent vision loss (unusual)
- Scar of the flap incision which can result in permanent vision loss (unusual)
- Difficulty seeing at night due to glare (light sensitivity )
- Dislodgement of the flap, even long after surgery
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