 If the condition occurs in a child, then the doctor will delay the surgery until the patient is 4 or 5 years old.If the patient is under the recommended age for surgery, then the doctor will test if occlusion therapy can compensate for the patient's impeded vision.The reason for delaying the surgery until the patient is at least 4-5 years of age is due to the delay for the frontonasal and upper face to complete their complex growth.