This way, a normal alignment of the eyes is restored. Normal alignment can enhance vision, depth perception, head position, communication and quality of life. Both children and adults can benefit from squint / strabismus surgery. Squint surgery is a very common eye operation. It usually involves tightening or moving one or more of the outside eye muscles which move the eye to change the eye position. These muscles are attached quite close to the front of the eye under the conjunctiva, the clear surface layer.
There are basically two categories of adults with strabismus, or misaligned eyes. They either had childhood-onset strabismus that was never corrected, or they have suffered orbital or head trauma, stroke, brain tumor, orbital inflammatory disease (thyroid eye disease) or other neurological or eye conditions.