Children’s eyes are red, swollen, itchy and photophobic, which may be caused by blepharitis, eye trauma and conjunctivitis. 1. blepharitis: blepharitis is caused by bacterial infection of the eyelid margins, triggering a chronic inflammatory response, under the stimulation of inflammation, there may be eyelid itching, redness, swelling, photophobia, tearing and other symptoms. 2. Eye trauma: children at play, if the eyes accidentally bumped and injured, it will easily lead to eye tissue contusion, coupled with the crying children rub their eyes vigorously, resulting in periocular blood vessels due to rubbing and squeezing caused by congestion, resulting in redness and swelling of the eyes, itching, photophobia and other symptoms. 3. Conjunctivitis: children often use dirty hands to rub the eyes, may cause eye surface tissue infection, induced by conjunctivitis and other ocular surface inflammation, under the stimulation of inflammation, may lead to eye redness, swelling, itching and photophobia. When children’s eyes appear red, swollen, itchy and photophobic, parents should take their children to the hospital in time to clarify the cause of the disease and follow the doctor’s instructions for treatment.