What it is
A squint (strabismus) is when the eyes point in different directions — one eye may turn in, out, up or down. Surgery moves or tightens some of the six small muscles attached to the outside of the eye to bring the eyes into line. The eye is not taken out of its socket during the operation.
Who it's for
Children and adults with a squint that is not fully corrected by glasses, patching or exercises. In children, a squint can cause a “lazy eye” (amblyopia), which is usually treated with glasses and patching first. Adults can also benefit, for example when a squint causes double vision.
What to expect
Children have surgery under general anaesthesia; adults may have local or general anaesthesia. It is usually done as day-care.
Recovery
The eye is usually red and a little uncomfortable for a couple of weeks. You will use prescribed drops, and most people return to school or work within about a week, as advised. Glasses or patching may still be needed, and sometimes more than one operation is required to achieve good alignment.
Frequently asked questions
Is there an age limit for squint surgery?
No. Squint surgery can be done in children and adults. In children, early treatment also helps prevent lazy eye.
Will my child still need glasses after surgery?
Often yes. Surgery corrects the eye alignment, not the glasses power.
Medically reviewed by Dr. Sweta Patro