Lasik Eye Surgery Side Effects

LASIK is a surgery in which a surgeon will permanently change the shape of your eye. The idea is to help you achieve perfect or near perfect vision. So it may cause some irreparable permanent damages to the eye. Sometimes however, you suffer complications that actually distort your vision in a way that cannot be corrected, even if you go back to wearing glasses.

LASIK surgery however, does come with some risks. The most commonly reported side effects are-

  • Some patients may receive under or over correction. This means that they will probably have to pay for another LASIK procedure to fix the over or under correction and hope for a right surgery this time. Or sometimes the vision return to the pre surgical vision. Over time, your eyes may slowly return to the level of vision you had before surgery. This may happen due to certain conditions, such as abnormal wound healing, hormonal imbalances or pregnancy. For that the patient might need to undergo another refractive surgery. Rarely, one might be unfortunate enough to experience loss of vision due to surgical complications. Also, uneven tissue removal can cause Astigmatism.
  • Some patients are at risk for corneal abrasion or other problems. Some studies suggest LASIK surgery may contribute to higher order aberrations, the very ones it sometimes corrects interestingly enough.
  • Some people experience dry eyes following surgery, although it is usually temporary but if not cured timely it can eventually result into dry eye syndrome.
  • The survey also reported reports causing possible risks like visual disturbances, such as glare, halos and/or double vision; poor nighttime vision. Opthalmology also notes that other risk factors of this procedure are inflammation and infection, bulging of the cornea (called ectasia) and even permanent vision loss.
  • The slight symptoms that are resolved within one to three days are mild pain/discomfort, burning, scratchiness and overproduction of tears/watery eyes. Fluctuating Vision can be common in the first weeks following LASIK. Symptoms that usually resolve between one week and one month are light sensitivity, hazy or blurred vision, glare, poor nighttime vision and dry eyes.
  • Altering the shape of the cornea with the Excimer Laser results in a temporary increase in the higher order aberrations of the eye. These have the effect of creating Halos around lights (induced spherical aberration), or distorting bright points of light into Starburst effects. These are more evident in low illumination, hence the fact that they are only reported at night.
  • A big disadvantage of Lasik procedure is that Flap literally never heals properly and can be easily displaced many years after your procedure in any accident involving your eyes
  • Complications due to LASIK have been classified as those that occur due to preoperative, intraoperative, early postoperative, or late postoperative sources: According to the UK National Health Service complications occur in fewer than 5% of cases.
  • Your eye doctor should look for risk factors prior to surgery that may make you a less than ideal candidate for surgery and discuss any abnormal findings with you at length. The following are considered to be risk factors for refractive surgery.
    • Corneas which are too thin or irregularly shaped
    • Heightened refractive error
    • Existing unstable vision
    • Dry eyes
    • Age limitations (must be 18 or over)
    • Physiological factors such as pregnancy
    • Existing degenerative disorders
    • Laser eye surgery side effects and complications
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