How long does it last?

    The change to the cornea is permanent.  So long as there are not other internal or health factors that are causing the eye to continually change prescription (genetic factors, diabetes, cataracts…), the effects of the procedure should last indefinitely.  Nevertheless, should the vision change in the future, additional procedures could be performed so long as there is enough corneal tissue remaining.  However, as there are advances in medical technology in the next decade or two, there may well be other options in those instances.

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