If you meant ocular oblique muscles, than yes.
I experience tearing (or better, aggressive and not smooth rotation of image), like screen tearing in Linux maybe it’s due to spasm or weakness of at least one oblique muscle. Of course that will not strengthen them because it’s too low-energy so effectiveness is low. Divergence in downgaze and upgaze is much better if the goal is to strengthen them.
I lose vertical lines sharpness with tilt because I use SE without half correction. I’m getting tired when AF sometimes doesn’t work to make that correction almost SE. So after 2 months I can go to SE if that situation wouldn’t resolve. If SE will not work reliably, I’ll try to reduce CYL. It’s hard for me to deal with SPH and CYL at the same time, because I’d like to get rid of more complex problems firstly. Such as strabismus and astigmatism, so after that I also can try Ortho C lenses to get rid of high axial length more efficiently.
If you meant oblique muscles try to hold the sharpness, then I certainly don’t guess that, due to their attachment to equatorial sclera so if they act at once, it assumes more elongated shape of sclera thus not more spherical. BTW, those who think they “just move eyeball”, why retina stretching and detachment very often begins from very equator?