If a newborn’s eyes are half-open and the tail part of the eyes can’t be opened, the possible clinical causes include incomplete development of the levator palpebral muscle, eye dysplasia, and adhesion of ocular secretions. 1. Incomplete development of the levator ani muscle: newborn babies’ eye muscle strength is relatively insufficient, which is manifested in incomplete or slow opening of the eyes, which is a normal phenomenon, pay attention to the observation can be. 2. Poor eye development: Newborn babies are affected by congenital or acquired factors and have poor eye development, which usually manifests itself in the form of collapsed eye sockets, collapsed eyelids, small eyeballs, or weak eye muscles, etc. All of the above manifestations will result in the inability to fully open the eyes. 3. Eye secretion adhesion: part of the newborn’s face care work is not done, the secretion around the eyes can not be timely cleaned up may cause the tail of the eye adhesion of the situation, so it is more difficult to open. The newborn’s eyes open half of the tail part of the eyes can not open, it is recommended to go to the hospital as soon as possible to clarify the diagnosis in order to carry out targeted treatment.