The weather is changeable in early spring. After bidding farewell to the sunny weather last week, this week began to change. According to the Meteorological Bureau, the temperature difference between morning and evening this week is as high as 10℃. During this period, attention should be paid to the contact between the face and cold air to avoid the terrible situation of subconjunctival bleeding and white eyes. A 4 1 year-old female patient surnamed Wu found white bleeding in her left eye at night, only because she was blown by cold air when riding a motorcycle after work. Wu thought he would get better after a night's rest, but the blood clot didn't disperse the next day. She was worried that this might be a precursor to a stroke, so she hurried to have an eye examination. After examination, it was confirmed that the sudden drop in temperature caused the rupture of microvessels, resulting in blood clots in the whites of the eyes. The doctor ordered more rest and prescribed eye drops. After 3 days, the patient's eyes slowly returned to normal. (Editor's recommendation: What about conjunctivitis? Does conjunctivitis have symptoms other than red eye? Two or three things you must know about eye inflammation) The elasticity of blood vessels is not good, and it is easy to "red eye" in spring. Some people often have white eyes and red eyes, while others almost never have red eyes. What is this? Dr. Spark from the Department of Ophthalmology, Children's General Hospital, said that in the spring when the weather is changeable, if people with poor vasoconstriction and elasticity are exposed to cold and hot air, the blood vessels in their eyes will easily rupture, leading to "subconjunctival hemorrhage". Is red eye a sign of wind in your eyes? Many people will regard subconjunctival hemorrhage as "wind in the eyes", but the two are completely different. According to the health education materials of Changhua Christian Hospital, although subconjunctival hemorrhage looks shocking, it probably won't affect vision. As for the serious wind in the eyes, the appearance looks the same as usual, and there is no pain; The terrible thing is that if the wind in the eyes is not treated in time, it is likely to cause permanent damage to vision. Dr. Li said that subconjunctival hemorrhage generally heals slowly, but it is recommended to ask a professional ophthalmologist to evaluate the condition, especially for patients with chronic diseases. It may be a physical warning! The probability of stroke within 3 years of subconjunctival hemorrhage is 33%. Dr. Spark pointed out that besides the temperature, it also includes rubbing eyes, lifting heavy objects, coughing violently, going to the toilet too hard and so on. , can cause subconjunctival bleeding. To prevent it, in addition to not overworking your eyes and getting enough sleep, you should also pay attention to not letting your eyes blow directly into the cold wind when the weather gets cold. It is suggested that vitamin C and vitamin B should be supplemented at ordinary times to protect eyes. Although under normal circumstances, subconjunctival hemorrhage does not require medical treatment; However, Keiko Yamada, a Japanese plastic surgeon, reminded that if the following situations occur, it is recommended to seek medical advice as soon as possible and find an ophthalmologist for diagnosis: subconjunctival bleeding caused by trauma, accompanied by itching, fever and other symptoms, and repeated bleeding. Fangjiu Yamaguchi, an ophthalmologist at Keio University School of Medicine, explained that the vascular wall of patients with chronic diseases is prone to pathological changes. When coughing or constipation, the eyes are rubbed too hard, and the microvasculature of the eyes is easy to rupture and even lead to blindness. Therefore, if subconjunctival hemorrhage occurs repeatedly, it is recommended to seek medical attention. In addition, some special diseases, such as malaria, scarlet fever, cholera, influenza and measles, may also cause subconjunctival hemorrhage. The Affiliated Hospital of Beijing Medical University, Taipei Medical College and other medical units have studied the cases of subconjunctival hemorrhage, and compared the data of 86,745 cases of subconjunctival hemorrhage and 86,745 cases of ordinary people from 2002 to 2006. It is found that the probability of stroke in people with subconjunctival hemorrhage symptoms is higher than that in ordinary people within three years! We should not ignore the small problem of "red eye". (Editor's recommendation: Stroke precursors come quickly and are difficult to distinguish! The doctor teaches you that people who have suffered from subconjunctival hemorrhage should not only pay attention to eye care, but also pay attention to their physical condition. It is suggested to prevent chronic diseases through balanced diet, moderate exercise and timely stress relief, so as to minimize the risk of any cardiovascular disease. Reference: Li Xinzhi /article/ 19598, press release of 2.cch/oph/education.aspx 3/20 Children's General Hospital, "The temperature is hot and cold, and the eyes bleed unexpectedly."