Children’s eyes redness may be the eyes into the sand, may also be acute conjunctivitis, allergic keratitis and other disease factors. 1. Sand in the eyes: after the eyes get into the sand, due to the stimulation of foreign objects, may produce friction feeling, foreign body sensation, etc., resulting in localized congestion and swelling of the eyes, which leads to redness of the eyes. 2. Acute conjunctivitis: also known as red eye, after the disease, the conjunctiva of both eyes is congested obviously, the white part of the eyeball will also appear red, often accompanied by burning sensation, foreign body sensation, increased secretion and other symptoms. 3. Allergic keratitis: it may be caused by contact with allergens such as pollen, drugs, cosmetics, etc. Early onset of the disease, there may be redness and swelling of the eyes, tingling sensation, increased secretion and other symptoms. If the redness of the child’s eyes is caused by disease factors, you should go to the hospital in a timely manner to avoid delaying the condition.