PRK 9 months after initial LASIK to treat under corrected eye?

I had LASIK in January. My left eye has been undercorrected and I have blurry vision. I can see fine in the distant but have a difficult time reading due to the left eye blurring. My Dr is recommending to retreat the under corrected eye with PRK at no cost. Should I be worried to have this procedure done only 8 months after LASIK? I'm also in my early 40s and the Dr mentioned that mono vision might keep me out of readers for a bit longer.

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