When the baby wakes up in the morning and his eyes are smeared with eye boogers, it means that there are infections in the eyes, and the common ones are keratitis, conjunctivitis and dacryocystitis. 1. Keratitis: It is an infection that occurs in the black eye part of the eye, in addition to the manifestation of eye boogers, there will also be eye pain, reluctance to open the eyes, tearing and other symptoms. 2. Conjunctivitis: It is an infection that occurs on the surface of the white eyeball and the conjunctival tissue that covers the inner surface of the eyelid. The symptoms are less severe than keratitis, and are mainly characterized by redness of the eyes and increased eye discharge. 3. Dacryocystitis: It is an infection that occurs inside the lacrimal sac at the inner corner of the eye, and is usually caused by congenital obstruction of the lacrimal duct. Parents are advised to bring their babies to the ophthalmology department of the hospital in time to find out the cause and then treat them under the guidance of the doctor.