Is it safe to undergo a lasik procedure for the 2nd time? Cornea thickness (457 and 425).

I had an eye power of -8.0 on both eyes. I corrected my power with a lasik procedure 4 years ago. Now, after 4 years, my power suddenly increased to -1.25(re) and -1.0(Le). My cornea thickness is 456 and 425. Is it safe to do the lasik procedure again to correct the vision?

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