Fog and haze attention to respiratory and eye protection

According to media reports, the number of visits to the respiratory departments in major hospitals and children's specialist hospitals in Beijing has increased significantly in recent days. Yesterday, the reporter learned from many hospitals in Shanghai's Tongji Hospital and Xuhui District Central Hospital that the recent poor air quality in the city has also led to an increase in the number of respiratory patients. In this regard, medical experts in Shanghai reminded that people in fog and haze must pay attention to health protection, and the weaker people should try to reduce their chances of going out. In addition, it is common knowledge to wear masks in smog days, but many people do not know that the concentration of dust, particles and other substances in the smog days is too high, it will also cause eye damage.

Particles can cause keratitis, conjunctivitis

“You can feel the air with hot eyes and uncomfortable throat, and quickly bring the mask...” The PM2.5 index is all the rage. Many people wear masks to protect the respiratory tract in severe smog days. Dr. Chen Jihong, deputy chief physician of Renai Hospital, told reporters that particles smaller than 5 μm can enter the small airway of the body freely, stimulating the oral cavity, throat, trachea, and alveoli from top to bottom, causing a series of reactions of epithelial cells, in addition to increasing allergies. In addition to related diseases, it also increases the risk of respiratory infections. Symptoms In addition to increased cough, sneezing, and runny nose, serious lung infections may even occur.

In addition to well-known respiratory diseases, haze can also cause eye damage. The expert ophthalmologist Wei Gehong told reporters that in the heavily contaminated air, a part of the inhalable particulate matter can also enter the eyes, which can lead to dry eyes, foreign body sensation and other discomfort. The more severe the smog, the more particles in the air, the greater the impact on the eyes, causing keratitis or conjunctivitis that can cause eye damage. Patients with basic eye diseases such as dry eyes and conjunctivitis may also worsen the existing symptoms.

Do not abuse eye drops caused by haze

"For eye diseases caused by smog, some people may use eye drops to relieve symptoms." Wei Gehong pointed out that this is undesirable, due to the complex composition of pollution particles, indiscriminate use of eye drops may delay or even worsen the condition and play a complete role. The opposite effect. If you find that your eyes are not feeling well, you can use clean water to clean your eyes and close your eyes. Take care not to drop your eyes with all kinds of eye drops.

Experts remind that when the haze is serious, everyone should try to reduce the number of people going out and reduce the exposure of pollutants to the eyeballs. If it is necessary to go out, it is recommended to wear protective glasses. Especially need to remind the beauty of the girls, when the haze is serious, do not wear contact lenses, US pupils and pupil magnification films. The eye itself is very fragile and it is easy to infect. The surface of the contact lens is charged with electricity, particles in the smog are easily adsorbed on the front surface of the contact lens, and sulfuric acid, nitric acid and other substances carried on the particulate matter enter the cornea and conjunctiva of the eye through the blink of an eye to stimulate the conjunctiva. Cause conjunctival congestion and redness, reduced local eye resistance, which in turn can cause viral and bacterial infections. In severe cases it can cause conjunctival inflammation.