In recent years, fog and haze has continued to appear throughout the country. It is not only the north. It has poor air quality, and it is well protected from haze, dust, and windy weather. It is equipped with sunglasses and masks. The role of sunglasses: can block UV and infrared, while the external environment does not change the color, only the light intensity changes, as if cloudy, there is a cool and comfortable feeling. In the case of bad weather from the outside world, such as dust storms, huge lenses can withstand the sand, for your eyes. Wearing pair of sunglasses in winter can get out of the sand and get into the eyes. If sand enters the eyes, it is susceptible to trachoma, causing eyelid swelling, inflammation, tearing, and blurred vision, which will seriously affect vision. If the dust is blinking, do not rub it with your hands. The best way is to close your eyes, wait until your eyes secrete tears, open your eyes again, and your tears can bring out foreign objects. If the above method does not work, you can rinse your eyes directly with water. If you still feel uncomfortable and painful after taking the above measures, it is very likely that foreign matter is caught in the eye tissue and you need to go to the hospital immediately. It mainly helps students understand the external shape and internal structure of the heart, as well as the large blood vessels related to the human body anatomical. The base is designed to be more convenient for users to use, and hand-colored realistically reproduces dozens of anatomical details. This anatomy model is perfect for the doctors office. anatomy classroom, or study aid. Human Organ Model,Internal Organs Model,Human Body Organs Model,Human Organ System Model Xinxiang Vic Science&Education Co.,Ltd. , https://www.huaxinbusbarchina.com
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Wear sunglasses in winter to keep out of the sand