Red eye is the common name for acute hemorrhagic conjunctivitis, which is called red eye because of the onset of subconjunctival hemorrhage or obvious congestion and redness in the eye. The causes of pink eye are many and can be broadly divided into infectious and non-infectious factors, common infectious factors include bacteria, viruses, chlamydia, mycoplasma, etc. For red eye caused by this cause, you can choose targeted medication, such as local antibiotics, antiviral and eye drops for mycoplasma and chlamydia, and if the condition is serious, you can choose systemic medication; non-infectious factors include physical and chemical Non-infectious factors include physical and chemical irritation, such as electrophthalmia, acid and alkali chemicals inadvertently entering the eye, such cases should promptly find a clean water source to clean the eyes, and then the nearest hospital for detailed examination, according to the condition of symptomatic treatment. Some eye surgery can also cause the occurrence of this disease, post-operative antibiotic and non-steroidal eye drops can be selected to treat this disease. In summary, the treatment of pink eye should be based on the specific causes of the disease, treatment for the cause, the causative factors removed, red eye can be cured, such as the specific causes of red eye can not be clarified, should be based on the patient’s medical history, specific clinical manifestations and related examination results of a comprehensive analysis, symptomatic treatment.