1. Is strabismus surgery safe and how is it performed? It is safe. Strabismus surgery is also known as extraocular muscle surgery. There are six muscles attached to the surface of each eye that control the movement of the eye in all directions. Strabismus surgery is one of the earliest surgeries carried out in ophthalmology, with a history of nearly 200 years. 2.Will strabismus surgery cause vision loss? No. Strabismus surgery is an external eye surgery and does not go into the eye, so it will not affect the patient’s vision. Even if there is a transient loss of vision after surgery, it is due to the visual disturbance and conjunctival suture stimulation after surgery. 3.Will general anesthesia affect the intelligence of children with strabismus surgery? No, although general anesthesia has certain risks, but the anesthetic drugs used will be metabolized by the body very soon and will not leave side effects such as sequelae, and with the development of intraoperative detection instruments, the depth of anesthesia has also been well controlled, so basically it is possible to wake up soon after surgery. 4.Why do strabismus sometimes need to be treated in separate surgeries? Generally speaking, for complex strabismus that combines two directions, for example, both vertical strabismus (superior and inferior strabismus) and horizontal strabismus (internal and external strabismus), the strabismus in one direction may affect the angle of strabismus in the other direction after surgery, so one direction will be done first and then the other direction. However, sometimes it is possible to do both directions at the same time. Even for strabismus in one direction, two surgeries are sometimes required to achieve orthopia because of individual differences. In addition, the uncooperative examination at a young age causes difficulties in determining the degree of strabismus before surgery, which is also one of the reasons for secondary surgery. 5. Do children with no strabismus when wearing glasses but with significant internal strabismus after removing glasses need surgery? After wearing glasses, children with complete refractive adjustment internal strabismus not only have positive eye position, but also can have monocular vision in both eyes. However, some patients or families do not accept glasses and would like to opt for surgery. This type of surgery does not change the refractive adjustment status and will result in an internal strabismus after surgery. In addition, the patient has poor visual acuity without the lenses and does not achieve the goal of removing the lenses. Therefore, this kind of patients should not perform surgical treatment. 6.Why do babies with crooked neck need to have eye strabismus surgery? Most cases of squinting neck are caused by abnormalities in the neck muscles. However, there are also eye abnormalities caused by a child’s crooked head. For children with no obvious abnormalities in the neck muscles and a crooked head, you should consider whether it is ophthalmic squint. Oculocerebral tilt is mostly due to congenital paralysis of the eye muscles. Most commonly, the superior oblique muscle of one or both eyes is paralyzed. When a child adopts this tilted head position, it can reduce the discomfort caused by the squint. However, prolonged head tilting can have many negative consequences for the child. First, there is the facial asymmetry caused by the crooked head (squint), which, due to gravity, causes one side of the face to be full and the other side to be thin. Secondly, it is the effect on the bones of the neck, causing scoliosis of the cervical spine. Thirdly, it may also cause developmental deformities of the mandible. Therefore, congenital ophthalmoplegia caused by squint should be treated by ophthalmic surgery at an early stage. 7.Why is there double vision after surgery? After strabismus surgery, a small number of patients may experience double vision. In most patients, the double vision can disappear on its own within a short period of time, and the fastest can disappear within one to several weeks after surgery.