Astigmatism does get worse if you don’t pay attention to your eye habits and look at electronic products for a long time. Astigmatism refers to the different refractive power of the eye on different meridians, parallel light through the refractive system of the eye, refraction can not form a focal point, but the formation of two focal lines. Simply put, it means that the light rays pass through the eye unfocused, forming scattered objects, so there will be double vision, and astigmatism is heavy no matter seeing far or near. Astigmatism is usually caused by genetics, trauma, surgery, eyelid pressure, poor eye habits, lack of outdoor exercise, etc. Mild astigmatism, such as 25 and 50 degrees, does not affect vision and can be left untreated. Medium to high astigmatism has a significant impact on vision and may lead to amblyopia if left untreated, so glasses are required and surgery is also available after the age of 18.