Treatment
Strabismus surgery
Clinically reviewed · Last reviewed 2026-06-13
What it is
Strabismus surgery changes the position or strength of one or more eye muscles so the eyes line up better. The surgeon may weaken a muscle by moving it back on the eye, strengthen one by shortening it, or adjust both sides. It does not cure the underlying cause of a squint but improves alignment.
Who it helps
Surgery may be recommended when a squint is constant, affects appearance or depth perception, or causes troublesome double vision in adults. In children, surgery is often combined with glasses and amblyopia treatment. The decision depends on the type of squint, age, and whether glasses alone are enough.
What happens on the day
Children usually have general anaesthetic. Adults may have local anaesthetic with sedation. The operation typically takes under an hour. Dissolvable stitches are often used on the white of the eye, which may look red for a few weeks.
Recovery and follow-up
Most people go home the same day. The eyes may feel gritty and look red for one to two weeks. Children still need glasses and patching if prescribed. More than one operation is sometimes needed, as eyes can drift again over time. Regular follow-up checks alignment and vision.
Conditions this can help
Frequently asked questions
Does strabismus surgery cure lazy eye?
No. Amblyopia (lazy eye) is treated with glasses and patching or drops. Surgery aligns the eyes but does not replace amblyopia treatment, which is most effective in young children.
At what age can strabismus surgery be done?
It can be done at almost any age, including infancy in some cases. Timing depends on the type of squint and whether glasses and amblyopia treatment are being used. Your ophthalmologist will advise on the best plan.
Can a squint come back after surgery?
Yes, sometimes. Eyes can drift again as children grow or in adults over time. Further surgery or prism glasses may be needed. Regular follow-up helps catch changes early.