How is astigmatism eye treated?

Hello, astigmatism is a state of ametropia. The reason of astigmatism is that the curvature of the cornea or lens surface is inconsistent, such as football-like, which leads to the different refractive power of the two vertical meridians, which can not be focused slightly, forming an unclear or overlapping image, and it is not clear whether you look far or near. Clinically, it can be divided into regular astigmatism and irregular astigmatism. Correcting astigmatism can be treated by wearing orthokeratology lens, which is suitable for medical treatment. As long as it is worn on the eyeball when sleeping, it will massage the eyeball flexibly, gradually make the cornea curvature change, flatten and shorten the axial length, thus effectively preventing the development of vision decline, which is known as "the technology that can control and correct vision when sleeping". It adopts inverse geometric design, and its inner surface is composed of multiple arcs. The generated fluid mechanics changes the corneal geometry and achieves the effect of correcting vision. After getting up in the morning and taking it off, the vision returns to the best state, generally above 1.0.