Our ophthalmology ward often admits little babies with ptosis in both eyes. The parents of the child will come in and say, “Doctor, let’s do both of our child’s eyes in one surgery so that both eyes look symmetrical.” We understand the parents’ feelings, but in principle, we have to do both eyes in two separate surgeries. This surgery is very traumatic to the child’s eyelids, and there is a risk of exposure keratitis because the operated eye will not close completely for some time after the surgery, which requires very careful care. Monocular surgery is relatively less traumatic and easier to care for. If the child’s eye is congested and the corneal epithelium is dry after surgery, we can always wrap this eye to allow the corneal epithelium to recover in time. If both eyes were operated on together and needed to be wrapped at the same time, the child would feel fearful and often cry, sometimes causing wound hematoma which is not conducive to recovery. Some parents think that if both eyes are operated on separately, the eyes will not be symmetrical after surgery. This concern is superfluous. As long as the child’s body allows, the interval between the two surgeries can be 1 to 2 weeks, and the surgeon will try to keep both eyes symmetrical, and it has little to do with whether or not one surgery is performed. Therefore, it is safest for the baby to have the other eye done after one eye has recovered well.