I think I figured out where the astigmatism is from…
It seems to be from tight extra ocular muscles. But why mostly in the left eye?
Well, I just discovered that I often rotate my head to the left when looking at things, but much less often do I rotate toward the right. Maybe I developed this habit from driving, to look more toward the oncoming (left) side; I don’t know. It may also have to do with where the furniture is situated at home in relation to walls, doors, and windows. Almost everything worth looking at (e.g. for breaks), in every setup I use, is on the left. I must have favored left-rotation so much over many years as a habit, because I actually have less neck flexibility toward the right. Additionally, my left side has always been the one that tends to bother me more in the neck area…for many years now. I know why now.
I gently did the extra ocular clock movements a few times. Not only did I discover improved vision in the left eye, but I can feel the tightness now, as you would with any muscle. It feels like minor eye fatigue from reading.
I’ll do these 2-3 times per day, but gently, with glasses on, while doing distance active focusing. The eye should adapt to the spherical lens in front of it done this way (versus without correction).
Additionally, I am going to, a few times per day, work on neck flexibility in the rightward direction.
I think hard blinks and lid stretches (opening wide to unstick the eyelashes) sometimes worsen the astigmatism, too. Both are another bad habit holdover I have from when I used to wear contact lenses. I still do them often when actively focusing.
I’m not going to do patching. I did it extensively and unnecessarily about ten years ago for other reasons, and it didn’t really accomplish much. I think it’s better for me to work on integrating vision from both eyes (binocular) as much as possible.
So far so good. In 12 hours, I’ve already achieved improved clarity and reduced astigmatism.
I’m of the mind that vision therapy should improve the vision afterward, not so much temporarily reduce it from strain.
April has always been one of my best months for new vision improvement and habits.