Eyes diseases. And in a world are less peoples with eyes problems, but a not hard to fight these problems.

 Astigmatism as move eyes.

Astigmatism is destroy for  refraction of light rays, as vertical lines you are see clear, horizontal but is bad,vague. And reason for astigmatism is  curvature for of eyeball. As eyeball is ideal ball, and refraction of ray lights in his happening a same in all directions.But if eyeball is deformed,thus refraction in a different direction is various.  And what to deform a eyeball? Change for for eyeball are muscles,which attached to his as oculomotor.And when muscle is load more, and other is less,thus and deformation happening.Thus a reason for curvature of eyeball and astigmatism displaying is different muscle tone of oculomotor muscle is muscle dis-balance. And therefore for a cure astigmatism you need a lead in a same condition a tone for oculomotor muscles.

And doing this with a simple exercises with eyes. As doing exercise as loading all oculomotor muscles in turn.And if muscles as diverting and leading,rising and lowering for eyeball are muscles, turning in one and other side ,therefore a such to train these muscles as to look for left, right, up, down, turn with eyes and press with fingers on the eye ball from a different directions as outside, inside, up, down, as outside is from a middle body line to outside, inside is inside eye part,is outside.This also help relaxing for over loaded oculomotor muscles. Improve vision is astigmatism decreasing  usually happens after a first train, but of course you need to train regularity, and thus astigmatism is will not.