Eyes are one of the most vital organs for each of us, so it is very important to ensure eye health. However, many young people nowadays have myopia to a greater or lesser extent. In more serious cases, myopia may be accompanied by astigmatism. In such cases, they need to seek help from ophthalmologists in time to ask them to help adjust the astigmatism problem, otherwise the astigmatism will only continue to worsen and even cause the risk of blindness. Astigmatism is an abnormal refractive phenomenon of the eye. When parallel light enters a normal eye, it will focus and form an image on the retina, so that the features of the object can be clearly observed. However, when parallel light enters the eye, patients with astigmatism cannot focus at the same point. Therefore, when observing objects, patients may experience double or overlapping images and feel blurred vision. So, what causes astigmatism? This is related to the cornea of the human eye. What is the cornea? The cornea is the black part of the human eyeball. It is very important to the human body. When the cornea becomes thinner due to long-term excessive use of the eyes or long-term incorrect eye posture, the surface of the cornea is no longer smooth, but becomes uneven in thickness and bumpy, which makes it difficult for light to form a good image on the retina. In addition to blurred vision, patients with astigmatism will also experience eye fatigue when observing objects. Prolonged use of the eyes will also cause soreness. Therefore, we must take good care of our eyes at ordinary times. When we need to use our eyes for a long time, try to do some movements to relieve eye fatigue every forty minutes to an hour. This can stimulate the acupoints of the eyes and promote blood circulation. Regarding the difference between myopic astigmatism and hyperopic astigmatism, it is actually very easy to distinguish. Both belong to astigmatism and the symptoms are generally the same. The distinction between hyperopia and myopia is mainly due to the different positions of the focal point on the retina. The focus of myopic astigmatism is formed in front of the retina, so the astigmatism is more serious when observing close objects, while the hyperopia situation will be improved. The opposite is true for hyperopic astigmatism. The focus is formed behind the retina. Astigmatism occurs when observing distant objects, but the situation improves when observing close objects. However, both types of astigmatism need to be corrected by wearing astigmatism glasses. We should pay more attention to eye health to avoid regrets caused by decreased vision. Decreased vision will also cause some inconvenience in life. You can eat more foods that improve eyesight, such as carrots, spinach, etc., and drink more chrysanthemum tea. At the same time, you also need to be careful not to overuse your eyes. |
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