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.
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
