The main symptom is that the upper eyelid cannot be lifted and the child often tightens the frontalis muscle – wrinkling the forehead and shrugging the shoulders to help lift the eyelid – or in severe cases, tilts the head to see. If the ptosis exceeds the pupil, it can cause amblyopia in the affected eye. The timing of surgery to correct ptosis in children: If the ptosis is severe, with the upper lid margin covering more than 1/2 of the pupil, surgery should be performed as early as possible to prevent amblyopia; if the ptosis is mild to moderate and does not interfere with the child’s normal visual development, surgery can be performed at 6-7 years of age before school. Individual children can be treated with local anesthesia before surgery. Children with moderate to high hyperopia, astigmatism, and strabismus with ptosis should be operated on immediately, as they may have severe amblyopia even if the ptosis is not severe. There are several surgical options for ptosis: There are several types of ptosis surgery depending on the degree of ptosis. Depending on the strength of the upper eyelid muscle and the patient’s condition, we can choose from a number of different surgical procedures: levator aponeurosis, levator shortening, and frontalis suspension. The frontalis suspension is more effective in children and is more in line with the physiological anatomy of the child’s eyes.