What effect does salt water have on washing eyes

Saline rinse eyes can play a role in rinsing clean conjunctival sac secretions and bacteria, but generally do not recommend the use of edible salt to wash eyes, because they do not know the amount of salt in the water at home, and there may be impurities in the water, so if you always rinse eyes with saline, it may lead to corneal dryness, thus causing patients to show dry and uncomfortable eyes. If you suffer from conjunctivitis or keratitis, you need to clean your eyes. Try to buy medical saline for rinsing. At the same time, you should also pay attention not to pollute the bottle opening of normal saline. Try to use it within one day after opening to prevent bacteria from breeding, thus polluting the whole bottle of normal saline.