There are more and more people wearing glasses, but not all of them are myopic, there is also a kind of astigmatism caused by blurred vision, what are the symptoms of astigmatism, and how to treat it do you really understand? What are the dangers of astigmatism? 1, vision reduction: astigmatism because the light can not focus into a focal point on the retina, so it will lead to reduced visual acuity. The degree of vision reduction is related to the nature of astigmatism, the degree of astigmatism and the direction of astigmatism. Higher astigmatism (more than 200 degrees) can even lead to amblyopia in children. 2. Visual fatigue: In order to improve visual acuity, patients with astigmatism often use regulation for self-correction, and the continuous tension of regulation can easily cause visual fatigue. In highly astigmatic eyes, due to the subjective efforts to improve visual acuity and give up the regulation, the symptoms of visual fatigue are not obvious. When the eyes are in a continuous state of fatigue, it easily leads to the occurrence of eye diseases such as conjunctivitis, eyelid inflammation (mydriasis, blepharitis) and chalazion. 3. Skewed head and squinting of vision: As both eyes have astigmatism, in order to see more clearly, patients with astigmatism tend to adopt a skewed head position for self-adjustment, which can mostly be recovered after wearing glasses for correction. Squinting is a physical pinhole effect and slit effect that can improve vision to a certain extent, so astigmatic patients often squint when looking at a distance, and wearing glasses can correct this bad habit. It is important to note that squinting is not an inherent part of astigmatism, it can also occur in myopic patients. What should I do if I have astigmatism? When you suspect that your child has astigmatism, you should have a timely examination. The most common method of treating astigmatism in children is to wear glasses and keratoplasty lenses, the purpose of which is not only to correct vision, but also to effectively relieve visual fatigue and prevent complications such as amblyopia and strabismus. Parents should supervise their children to wear glasses as required in order to ensure the effectiveness of treatment. 2. Compared to children, adolescents and adults over 18 years old with more stable astigmatism within 600° who do not want to wear glasses can have excimer laser and femtosecond laser surgery to completely cure astigmatism. Excimer laser surgery uses a laser and a computer to perform the surgery in a timely manner, which is very accurate and can accurately locate the surgical site without damaging other parts of the body. Femtosecond laser surgery does not use a scalpel throughout the surgery, and the laser treatment avoids dry eyes and corneal flap defects after surgery, and the vision after surgery will be very good, without any discomfort symptoms, and the cornea will become more perfect after surgery.