I’ve been playing around with these ideas for about a year and a half. Lately I’ve been a bit frustrated because (whiney voice)… I’m not improving! Prescription complexity is a bitch. I started in the neighborhood of -2.5 SPH, but had multi diopter astigmatism (-1.5 R, -2.5 L). Anyway, my first set of differentials I did not reduce the CYL at all. Then for fun, I bought a set of differentials with no CYL correction. I had a lot of trouble with feeling or noticing active focus with my first set of differentials. However with these new differentials, I notice huge shifts in blurry to clear, after I blink or depending on how I stare or look at edges, or relax my focus. It’s like I can exercise more control of my focus, though I can’t hold it for long periods and don’t have a lot of control yet.
I’m starting to think that my astigmatism correction was really screwing up my ability to practice active focus up close. I’ve been afraid to drop the CYL entirely because of the recommendations in here to move slowly, but I’m starting to wonder if my lack of improvement lately has anything to do with this horribly complex prescription and my relatively high CYL to SPH ratio.
Anyway, just thought I’d share my experience. There are some days I just get so tired of f#cking blur challenge that I just want to give up. Other times I notice improvement and am motivated to keep trying. Maybe reducing the CYL portion of this prescription in stages will start me back on the road to improvement.