Likely answered this before, but it still keeps coming up:
If you’re making reductions and also seeing an optometrist, you may at some point get a ‘diagnosis’ of some new astigmatism. Or you might notice some double vision / ghosting after a reduction, possibly just in adverse lighting conditions, ie. dusk, evening, artificial light.
Astigmatism now has one page that gathers all of this in one place: astigmatism, what it is and what changes it.
Don’t get cylinder correction for that. Just don’t reduce again until the effect is gone.
More in this video:
Hopefully useful!
Cheers,
-Jake
Related: how to reduce astigmatism · 0.50 astigmatism · astigmatism double vision
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See how these fit the wider evidence: Can myopia be reversed? What the evidence actually says.
Why Did My Astigmatism Get Worse?
It is common to get a new astigmatism diagnosis from an optometrist while you are making reductions, or to notice some double vision or ghosting after a change, especially in low light like dusk or evening. The usual advice is to skip cylinder correction for that and just hold off on further reductions until the effect clears on its own.
