The need for hospitalization for retinal laser photocoagulation in preterm infants should be decided on a case-by-case basis and in accordance with medical advice. Some children can be discharged on the same day if they are in good condition after evaluation; some preterm babies will be hospitalized and kept in the hospital for a period of time to avoid other complications and lesions after the retinal laser surgery. The postoperative reaction and the physical condition of the preterm baby will have a direct impact on the hospitalization of the preterm baby. If the whole body is in good condition after evaluation by a professional doctor, some of the babies can be discharged on the same day without hospitalization. In addition, some preterm babies have special physical conditions, and after laser photocoagulation, if there are risk factors, they should follow the doctor’s advice and stay in the hospital for a period of time for observation and measurement of the baby’s intraocular pressure and visual acuity, and be discharged from the hospital only after their ocular and general conditions are stabilized. In order to avoid affecting the eye development of preterm babies and the development of retinopathy, it is important to consult a doctor in time, so that early detection and treatment can improve the prognosis as much as possible.