Anti-blue light glasses are mainly designed to reduce the damage caused by blue light from the electronic screen to the eyes. Therefore, no matter it is astigmatism or myopia, you can wear anti-blue light glasses, which can also play a role in relieving eye fatigue and reducing the damage to the eyes. Astigmatism is one kind of refractive error, which is mainly caused by the irregularity of cornea, and it is divided into two kinds according to the different causes: the first one is physiological astigmatism, which is seen in children and adolescents, and the astigmatism will not be too big, and seldom exceeds 400 degrees, and it can be treated by corneal contact lenses, framed glasses, and refractive surgeries. The second type, acquired astigmatism, refers to diseases secondary to the cornea, such as corneal scarring, corneal trauma, and conical cornea. In this case, the astigmatism is extremely irregular, so it is sometimes difficult to improve the vision to normal with conventional correction methods. If it is more severe, corneal transplantation can be considered to improve vision.