A study has found that chlorine is not the only culprit to why you might have red-eye after swimming in a pool.
Read below the findings from Yahoo.com
Plenty of swimmers blame chlorine in pools for symptoms like red, stinging eyes and nasal irritation, but the reality is a bit more complicated and a lot more disgusting, according to the Centers for Disease Control and Prevention.
The CDC says the red eyes are caused by “chlorine binding with sweat, urine, and other waste from swimmers,” creating irritants that can spread from the water to the air as the amount of waste in the pool increases, KFOR reports. This makes eye irritation especially bad at many indoor pools, according to the CDC, which says pool operators should make sure there’s plenty of fresh air circulating when there are plenty of swimmers.
Dr. Michael Beach, a man the CDC describes as its “foremost expert on waterborne illnesses,” tells Women’s Health that the CDC thinks swimming is a “fantastic activity” and the agency wants to keep it that way by keeping people healthy. That means advising them not to pee in the pool—and to have a good shower before getting in.