Strabismus means the eyes don't point in the same direction. One eye may turn in, out, up or down, all the time or only now and then. It's usually linked with children, and much of the information you'll find online is written for parents. Adults have it too. Some had it as children and were never treated. Some were treated but drifted again. Others develop it later in life after a stroke, a thyroid eye problem, an injury or earlier eye surgery.
For adults, strabismus can mean double vision, eye strain, trouble judging depth, holding the head at an angle to compensate, or self-consciousness at work and in social life. This guide explains how adult eye muscle surgery works, what it can and can't do, and how to plan for it.
Why Adults Seek Treatment
People often assume adult strabismus surgery is purely cosmetic. In practice, the reasons are usually a mix:
- Double vision. New-onset strabismus in adulthood often causes double vision, because the adult brain can't easily ignore the image from the misaligned eye the way a child's brain can.
- Head posture. Some people tilt or turn their head to keep the eyes working together, which can lead to neck discomfort.
- Visual field. When the eyes turn inward, the area you can see with both eyes can shrink. Realigning them may change that.
- Social and work impact. Eye contact matters in conversations, interviews and presentations. Visible misalignment can affect confidence.
Any combination of these is a legitimate reason to see a specialist. Being an adult doesn't make the concern less valid.
Start With the Cause
New strabismus or double vision in an adult needs a medical evaluation before anyone talks about surgery. Possible causes include nerve problems, thyroid eye disease, conditions affecting the muscles or nerve signals, injuries and, rarely, problems in the brain or around the eye. Sudden double vision, especially with headache, a drooping lid or other neurological symptoms, should be assessed urgently.
Once the cause is understood and the alignment has been stable for a while, surgery planning can begin. In conditions like thyroid eye disease, surgeons usually wait until the disease has settled, because operating while it's active can lead to a result that doesn't last.
Non-surgical options come first for some
Depending on the type and size of the misalignment, glasses with built-in prisms, updated prescriptions or exercises may help. MedlinePlus (reviewed 2024) notes that surgery is usually considered when glasses or eye exercises haven't improved the strabismus.
How the Surgery Works
Several small muscles move each eye. Strabismus surgery changes the pull of one or more of them, on one or both eyes. Paraphrasing MedlinePlus's description:
- The surgeon makes a small cut in the conjunctiva, the clear tissue over the white of the eye, to reach the muscle. Skin cuts aren't needed.
- To weaken a muscle, it's reattached farther back on the eye. This is called a recession.
- To strengthen a muscle, a section of muscle or tendon is removed so it pulls more. This is called a resection.
The eyeball isn't removed or opened during this surgery. That's a common worry worth clearing up early.
Anesthesia
MedlinePlus explains that children usually have general anesthesia, while adults are usually awake with medicine to numb the area and help them relax. Some adults may have general anesthesia depending on the surgery and their preferences. Ask what your surgeon recommends and why.
Adjustable sutures
Many adult strabismus surgeries use an adjustable stitch on the weakened muscle. MedlinePlus describes the surgeon making small changes later that day or the next day, and says the technique often has a very good outcome. In practice, once you're awake and can look at targets, the surgeon checks your alignment and can tighten or loosen the stitch slightly. Not every case is suitable, but it's a reasonable question to ask.
| Approach | What happens | Why it's chosen |
|---|---|---|
| Fixed stitches | Muscles are secured in their final position during surgery | Simpler process; common in children and some adult cases |
| Adjustable stitches | Final position fine-tuned after surgery, while the patient is awake | Allows correction based on how the eyes actually line up |
What Surgery Can and Can't Do
Setting realistic expectations is the most important part of the conversation.
It can: improve eye alignment, reduce or remove double vision in many cases, improve head posture, and make the eyes look straighter.
It can't: sharpen vision in a lazy eye. MedlinePlus states plainly that the surgery doesn't correct poor vision in an amblyopic eye, so glasses or other treatment may still be needed. It also can't guarantee perfect alignment for life. Some people need more than one operation, and alignment can change over the years.
Ask about double vision before surgery, not after
Some adults who have had a misaligned eye since childhood don't see double because the brain has learned to ignore one image. Changing the alignment can sometimes bring double vision to the surface. Specialists often use prisms or other tests before surgery to estimate this risk. If your surgeon doesn't bring this up, ask.
Risks to Discuss
MedlinePlus groups the risks into three types:
- Anesthesia: reactions to medicines and breathing problems
- Surgery in general: bleeding and infection
- Specific to eye muscle surgery: wound infection, rare damage to the eye, and rare permanent double vision
Other things to discuss include under- or over-correction, the chance you'll need another procedure, and how redness and appearance change while the eye heals. MedlinePlus notes that the eyes should look normal within a few weeks.
Before and After Surgery
Preparation
According to MedlinePlus, your surgeon may ask for a medical history, a physical exam and detailed eye movement measurements (orthoptic testing). You'll be asked about all medicines, supplements and allergies. About 10 days before surgery, you may be told to stop aspirin, ibuprofen, warfarin and other blood thinners, unless your surgeon says otherwise. Always follow your own surgeon's instructions on medications, especially blood thinners prescribed for heart or vascular conditions.
Recovery
- Most patients don't stay overnight and go home a few hours after surgery.
- The eyes are usually red and may feel scratchy or sore at first.
- Avoid rubbing the eyes, especially in the first few days.
- Drops or ointment are usually prescribed to prevent infection.
- A follow-up visit is typically scheduled one to two weeks after surgery.
MedlinePlus doesn't give a set timeline for returning to work or other activities, and your surgeon will advise you based on your job and the extent of surgery. Ask specifically about driving if you've had double vision, about screen time, and about swimming or dusty environments.
Choosing a Surgeon
Adult strabismus is a specialized area. Look for an ophthalmologist with fellowship training in pediatric ophthalmology and strabismus, or in adult strabismus and neuro-ophthalmology, who regularly operates on adults. Good questions include:
- How many adult strabismus surgeries do you perform?
- Do you use adjustable sutures, and would they suit me?
- What's my risk of double vision after surgery?
- Which muscles and which eye or eyes would you operate on, and why?
- What would you do if I'm under- or over-corrected?
- Does my underlying condition need to be stable first?
Planning Surgery Away From Home
Strabismus surgery is usually an outpatient procedure, so people sometimes consider it while traveling or living abroad. Before you do:
- Allow time for adjustment. If adjustable sutures are used, you'll need to be there the day of or after surgery.
- Stay for the first follow-up if possible, or arrange a qualified local doctor who can see you within the recommended window.
- Bring home detailed records: which muscles were operated on, how far they were moved, and the measurements before and after. Any future surgeon will need this information.
- Plan for a possible second operation. Ask how revisions would be handled and where.
For broader planning, see our guide for first-time eye surgery patients abroad and our questions to ask an eye surgeon.
The Bottom Line
Adults with misaligned eyes have real options. Eye muscle surgery adjusts how the eye muscles pull, often with adjustable stitches that let the surgeon refine the result. It can reduce double vision and improve both function and appearance. It won't sharpen vision in a lazy eye, and some people need more than one procedure. Start with an evaluation of the cause, choose a surgeon experienced in adult strabismus, and plan follow-up as carefully as the surgery.