I went down 1 diopter within a year and I am very happy so far.
I understood that initial myopia is caused by too much close-up (near-induced transient myopia). By wearing glasses and especially due to hyperopic defocus, the eye ball elongates and the myopia gets worse (lens-induced myopia).
My understanding: Wearing glasses makes the ciliary muscle “weak” as we are not really using the muscle to focus, because glasses do the work for us. With AF we are actively contracting the ciliary muscle, which relaxes the muscle and helps us to see sharper without glasses. So it makes sense for me, that AF helps to reverse near-induced transient myopia.
But how does AF contribute to a shortening of the axial length of the eye ball, so I can also get rid of the lens-induced myopia?
Example: If I look at something at the edge of blur, my brain might say “we need to shorten the eye-ball” in order to see sharp again (myopic defocus). But if I do AF in that particular moment, I instantly see sharp, so the image hits my retina again. So my brain might think then, “oh everything is sharp again, we don’t need to shorten the eye ball”.
So is AF only helpful for near-induced transient myopia and if not, how does AF contribute towards the shortening of the eye ball? And what is really key for shortening the eye ball?
Thanks for any advice!