[m463]

The best vision you can get is your real eyes plus contact lenses.

Vision surgery will correct the central portion of your eyes, and it won't last your lifetime.

After vision surgery, your prescription can continue to change, however it is difficult to correct the vision with contact lenses at that point because your eye has a "plateau" shape, which contacts aren't really designed for.

Also, if there is astigmatism, it's hard to correct it at low diopters of correction.

[ademup]

I had low diopter astigmatism and got lazik 6 years ago at 39. I consider it the best decision I've ever made that was just for me. I still have perfect vision, and if it degrades again I will happily get it done again. Just my experience, but I have yet to meet anyone who has regretted it.

[pensatoio]

Can you really have the procedure done a second time?

[nawgz]

It just re-shapes your lens via subtraction. you can have it done as many times as your lens has enough material to be molded into the required geometry via removing material.

[merlincorey]

So how many times is that on average?

Naively searching seems to mostly get well SEO'd results from LASIK related companies making claims like "In general, there is no limit on how many LASIK procedures you can get in your lifetime"[0]. Though that is followed by "The thickness of the cornea is one of the main determinations regarding the safety of multiple LASIK surgeries" in the same article which seems to contradict the previous statement as there is clearly a limit before it becomes unsafe to perform another procedure.

Meanwhile on a very short search, I cannot seem to find any study or report about literally anyone having more than two laser eye surgeries.

I did find an FDA guideline from 2022 that lists a surprising number of risks for laser eye surgeries[1].

[0] https://vson.com.au/how-many-times-can-you-have-lasik-eye-su...

[1] Laser-Assisted In Situ Keratomileusis (LASIK) Lasers - Patient Labeling Recommendations (https://www.fda.gov/media/160239/download)

[nawgz]

> So how many times is that on average?

Certainly it is a number 0-many

I know an uncle who has had it twice

I am ineligible for the procedure as my farsightedness is too severe when coupled with a thin portion of my cornea

I would guess the first surgery is generally the most severe and the followups require less material removal, but I think your research is probably more detailed than mine at this point.

[hammyhavoc]

There is no limit for LASIK procedures.

[foobiekr]

risk of infection and poor results with each attempt. a friend had his "fixed" and ended up worse off.