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Before undergoing the LASIK
surgery, you must get a thorough examination to determine whether your
eyes are healthy and suitable for the procedure. To prepare for the
examination:
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Stop using your contact lenses before the
examination. For soft lenses, you should refrain from using it at
least 7 days prior to the exam, and for hard lenses, at least three
weeks. This is important because long term usage of contact lenses
often changes the shape of the cornea and thus it needs time in
order to return to its original shape. |
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You should have someone drive you to the hospital
because your physician will dilate your pupils, and it may cause
side effects such as blurry vision or inability to withstand bright
light, which can impair your driving ability. Your pupils should
return back to its normal size after about 4 hours.
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The physician begins by
performing preliminary examinations and then perform the LASIK
surgery:
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A health exam is first conducted to ensure
suitability for the operation (e.g. no viral or bacteria infection,
glaucoma, etc.) |
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A detailed eye exam is then conducted to assess |
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Curvature of the cornea and pupil - If the pupil
is too large, the physician may correct it by performing Custom
LASIK (Wavefront) procedure to reduce the dispersement of
light. |
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Physical chracteristics of the eye To analyze for
high degree of astigmatism or for Keratoconus, a degenerative
disease of the cornea that causes it to gradually thin and bulge
into a cone-like shape. |
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Thickness of the cornea If your cornea is too
thin, it may not be possible to correct your vision entirely through
LASIK surgery. |
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Actual prescription and condition of the retina
To obtain accurate measures, the pupils must be
dilated. | |
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Once all the preparation is
done, the physician merely use antiseptic eye drops and perform the LASIK
surgery which takes no more than 10-15 minutes for each eye. |
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