Congenital ptosis, commonly referred to as “dyschromia”, is a relatively common pediatric eye condition. Ptosis is mainly due to incomplete or lost function of the levator muscle and other causes of partial or total failure to lift the upper eyelid, which partially or completely obscures the pupil. The vast majority of congenital ptosis is due to hypoplasia of the levator muscle, or disorders of the central and peripheral nerves that innervate it, with a genetic predisposition. Acquired factors include paralytic, neurologic, myogenic, and traumatic. Such children see by raising their eyebrows, or looking up with their heads raised. Severe ptosis of the upper eyelids obscures the pupil and visual axis and can often cause amblyopia in the affected eye. Treatment for ptosis should be tailored to different causes. Congenital ptosis should be corrected with early surgery. In general, the best age for surgery for congenital ptosis in children is between 3 and 5 years of age, or earlier, around 2 years of age, if the condition is particularly severe. Many parents have misconceptions about the surgery, believing that the surgery for young children requires general anesthesia and that local anesthesia can be used when the child grows up, and that parents worry that general anesthesia is not good for the child’s health, so they want to let the child grow up and have the surgery. If the surgery is performed too late, amblyopia will be formed, but the child’s vision and physical and mental regrets will be irreversible. Therefore, it is important to treat your child at the best time for surgery. The usual surgical options for ptosis are: (1) strengthening the levator muscle, such as shortening or migrating the anterior muscle; (2) opening the lid fissure with the help of the traction of the frontalis muscle. Different surgical options can be chosen depending on the condition and the strength of each muscle. Some parents may not understand that it is redundant to open their child’s good eye. In fact, in some cases of congenital ptosis, although the ptosis is only apparent in one eye, it is often associated with a lower than normal upper eyelid strength in the opposite eye, so the opposite eye is relatively droopy after surgery. The surgeon will usually determine the strength of the levator muscle before surgery and recommend bilateral surgery to ensure that the eyes are symmetrical and aesthetically pleasing after surgery. Patients are encouraged to turn their eyes after the bandage is removed, and children can be induced to do so through play. Until the eyelids are completely closed, it is important to reduce the amount of dust and foreign body damage to the cornea by going outside or wearing protective glasses.