The summer heat is approaching, swimming can cool down the heat, but also to achieve fitness purposes. Swimming in the pool should also pay special attention to protect their five senses. Swimming in a pool is most likely to cause eye disease, so ophthalmologists are warning the public not to forget about eye care when swimming in the summer. Excimer specialists suggest that it is best to avoid swimming for those who have inflammation in their eyes and those who have just had eye surgery to prevent infection. Swimming can easily lead to eye diseases, most commonly acute conjunctivitis (i.e., pink eye), mostly caused by bacterial and viral infections, and the most obvious symptom is eye congestion (i.e., red eyes), which can also lead to complications of acute conjunctivitis. Especially swimmers wearing contact lenses, corneal epithelial cells will be hypoxic, the movement of the lens will damage the corneal epithelium, resulting in cell death and shedding, so that germs will invade the wound, causing inflammation. 1, swimmers try to choose a swimming place with good water quality and less pollution. 2, before and after swimming it is best to take one or two drops of antibiotic eye drops, and it is best not to use other people’s used towels and other items during the swimming process. 3, can not wear contact lenses when swimming, diving as far as possible to close the eyes, if possible, it is best to wear protective swimming goggles when swimming. 4, in swimming activities as far as possible without hand rubbing eyes, suffering from high myopia (how to treat myopia) can not dive head down, so as not to trigger retinal detachment. Remember that after swimming, timely wash your face with clean water, bath, and spot antibiotic eye drops once. 5, swimming in the pool, caused by the mild stimulation of bleach disinfectant conjunctivitis, often in the water after the eyes have a slight redness, a few minutes to a few hours later, it will disappear on its own, generally do not need to go to the hospital for treatment. However, if the symptoms have a tendency to worsen, infected with acute conjunctivitis, do not order eye drops without permission, in case the infection is aggravated, it is best to see a doctor at a regular hospital.