Conjunctival congestion or red blood in the eyes of children is usually seen in the following cases: First, the performance of eye fatigue, such as children often contact with computers, cell phones and other electronic products, or for too long. In this case, the symptoms will get better on their own after taking rest. In addition, computers, cell phones and other electronic products can cause eye congestion and may cause refractive error, so it is recommended that children should avoid this situation. Secondly, if the conjunctival congestion is accompanied by an abnormal increase in eye stool, local infection may exist, such as conjunctivitis, keratitis, etc. Anti-infection symptomatic treatment should be given, selecting sensitive antibiotic drops, such as tobramycin eye drops. Third, there is also a relatively rare case of congenital glaucoma, which can be ruled out by doing an intraocular pressure check at the hospital, which is relatively rare.