now people can hardly live without computers and mobile phones, so many people's glasses are in the state of visual fatigue for a long time, and there are many eye problems caused by it. Astigmatism is also a very common vision problem. What are the symptoms of astigmatism? How to prevent astigmatism? Let's take a look at this article.
What are the symptoms of astigmatism
1. Eyesight fatigue: the blurred images on the retina need to be continuously fine adjusted. In addition, the visual objects are distorted, so astigmatism, especially hyperopia astigmatism, is prone to eyesight fatigue. Young people with compound hyperopia astigmatism can often make up with adjustment. According to the degree of adjustment, pseudosimple hyperopia astigmatism, pseudosimple myopia astigmatism or pseudocompound myopia astigmatism can be formed.
2. Blurred vision: blurred vision is closely related to the degree and mode of astigmatism. People with mild astigmatism usually have normal vision, but they may have headache, eye fatigue and blurred vision when looking at objects at a certain distance. People with severe astigmatism have blurred and distorted vision. It's not very clear to see far and near. Working close for a long time, that is, eye swelling, headache, reading channeling or ghosting
3. Normal head position and eye position: those with highly asymmetric astigmatism in both eyes often adopt inclined head position in order to see more clearly, resulting in strabismus, which can be recovered after astigmatism correction. High astigmatism often squints when looking at distant targets to achieve the effect of pinholes and cracks, so as to improve vision. Seeing through pinholes or cracks can reduce the impact of astigmatism on vision.
Symptoms of astigmatism in children
1. Whether eye-catching items are found in time. Put eye-catching items in front of the child and observe whether he can find them in time.
2. Whether there is a follow-up reaction. After changing the direction of the object, observe whether the child has a follow-up reaction. (a group of items from large to small can be selected, and the placement method should be from near to far).
3. Whether you watch TV too close. Observe the child's binocular and monocular gaze, and pay attention to whether he likes to get close when watching TV.
How to prevent astigmatism
1. For the prevention of astigmatism, parents and friends should pay attention to observation. If they find any problems, they should take their children to the eye hospital for examination in time. It is best to have the first full eye examination when you are 3-4 years old, and then have a regular eye examination 1-2 times a year.
2. Guide young children to know those dangerous games and toys to reduce eye trauma. Guide young children to develop good hygiene habits and do not touch their eyes casually with hands or their chemicals, so as to avoid infectious eye diseases. If they are infected with eye diseases, try to reduce going out. These can be a good way to prevent astigmatism.
3. For the prevention of astigmatism, we also need to pay attention to the clear font when selecting reading materials, not too small. The TV is placed a little below the eye parallel line. If you watch TV, you must be 5-7 times away from the diagonal of the TV picture.