A collection of readings re: the effects of posture on astigmatism.
http://www.oepf.org/sites/default/files/Symphony%20Article_1.pdf
Forrest-a new model of functional astigmatism
Forrest-Astig as fx of visual scan, head scan, posture
Forrest-eye scan therapy for astigmatism
The_Effect_of_Accommodation_on_Ocular_Shape-Mutti