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Thank you for the question. I am Dr.A.S.Desai, certified ophthalmologist and I look forward to answering this question for you.
Laser surgery of the eye for visual improvement such as LASIK is a permanent procedure . It has permanent effects if done after 18-20 years of age or when done with 3 years of no change in spectacle power. Visual deterioration will not be , if at all, due any kind of recurrence. In case vision deteriorates or decreases after undergoing the laser procedure, it would due to some other reason , such as any complication of the procedure /subsequent trauma and so on.
Hope this helps you to take the right decision. Take care.
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