Strabismus (Crossed Eyes) in Children: Diagnosis & Treatment in Seoul
Expert pediatric eye care from Dr. Daniel Baik, board-certified ophthalmologist — Nunehim Eye Center, Guro, Seoul
Quick Answer
Strabismus, or crossed eyes, occurs when a child’s eyes are not properly aligned and point in different directions. Early diagnosis and treatment for strabismus in children in Seoul — through glasses, patching, or surgery — can prevent amblyopia (lazy eye) and permanent vision loss.
Q. What is strabismus in children?
Strabismus is a misalignment of the eyes in which one eye turns inward (esotropia), outward (exotropia), upward (hypertropia), or downward (hypotropia) while the other eye looks straight ahead. It can be constant or intermittent, and may affect one eye consistently or alternate between both eyes. In children, strabismus disrupts normal binocular vision development and, without treatment, can lead to permanently reduced vision in the affected eye.
Q. What are the symptoms and signs of strabismus?
- Eyes that appear to point in different directions in photos or in person
- Head tilting or turning to compensate for misalignment
- Squinting or closing one eye in bright sunlight
- Poor depth perception or clumsiness reaching for objects
- Double vision, in older children who can describe symptoms
Strabismus by the Numbers in Korea
▸ Strabismus affects approximately 2–4% of children in Korea
▸ Esotropia (inward turning) is the most common type among Korean children, especially infantile esotropia
▸ Untreated strabismus before age 7–9 can cause permanent amblyopia in the affected eye
▸ Early intervention before age 2 for infantile esotropia significantly improves binocular vision outcomes
Q. What treatment options are available for strabismus?
Treatment depends on the type, severity, and cause of the misalignment. Options include corrective glasses for accommodative esotropia, patching or atropine drops to treat associated amblyopia, prism lenses for mild deviations, and eye muscle surgery for larger or persistent misalignments.
At Nunehim Eye Center in Guro, we tailor treatment plans for each child, combining regular monitoring with the least invasive effective option, and coordinate closely with families across Yeongdeungpo, Gasan, and Gwanak.
Q. What causes strabismus in children?
Strabismus can result from problems with the eye muscles, the nerves that control them, or the brain’s vision-processing centers. Common contributing factors include uncorrected farsightedness (hyperopia), family history of strabismus, premature birth, and certain neurological or genetic conditions. In many cases, no single cause is identified, which is why a thorough pediatric eye exam in Seoul is essential for accurate diagnosis.
Q. When should I see a doctor in Seoul?
- Your child’s eyes appear misaligned at any age, especially after 4 months old
- A family member has a history of strabismus or amblyopia
- Your child squints, tilts their head, or complains of double vision
- Your child was born prematurely or has a related neurological condition
Esotropia
Inward turning of one or both eyes; the most common type in Korean infants and young children.
Exotropia
Outward turning, often intermittent and more noticeable when a child is tired or daydreaming.
Hyper/Hypotropia
Vertical misalignment, upward or downward, that may require prism correction or surgery.
A Note from Dr. Daniel Baik
“As a board-certified ophthalmologist treating families across Guro, Yeongdeungpo, and Gasan, I always tell parents: the earlier we catch strabismus, the more treatment options we have and the better the visual outcome for your child. A five-minute screening today can prevent a lifetime of vision problems.”
❓ Frequently Asked Questions
Q. At what age should my child’s eyes be checked for strabismus?
Pediatric ophthalmologists recommend a first eye screening between 6 months and 1 year of age, and another around age 3, since infantile esotropia often appears before age 1. Children in Yeongdeungpo and Guro families can visit Nunehim Eye Center for a comprehensive pediatric eye exam at any age if misalignment is noticed.
Q. Is strabismus surgery necessary for all children?
No. Many cases of strabismus, especially accommodative esotropia linked to farsightedness, are managed successfully with glasses or patching therapy alone. Surgery is reserved for cases where the misalignment is large, constant, or does not respond to non-surgical treatment.
Q. Can glasses correct crossed eyes?
Glasses can fully or partially correct accommodative esotropia, a common form of strabismus caused by uncorrected farsightedness. In these children, wearing the correct prescription reduces the extra focusing effort that pulls the eyes inward.
Q. Will my child’s strabismus come back after treatment?
Recurrence is possible, particularly in early-onset or large-angle cases, which is why Nunehim Eye Center schedules regular follow-up visits after surgery or during glasses/patching therapy to monitor alignment and vision.
Q. Is strabismus surgery safe for young children?
Yes. Strabismus surgery is one of the most commonly performed pediatric eye surgeries and is generally safe, performed under general anesthesia with a short recovery period of about one to two weeks.
Q. Does insurance cover strabismus treatment in Korea?
Diagnostic exams and medically necessary strabismus surgery are typically covered under Korea’s National Health Insurance. Our staff can help explain coverage details for patients from Guro, Gasan, and Gwanak during their consultation.
Q. How is amblyopia related to strabismus?
When one eye is consistently misaligned, the brain may suppress input from that eye to avoid double vision, leading to amblyopia (lazy eye) if untreated. This is why early diagnosis and treatment of strabismus before age 7-9 is critical to preserving vision in both eyes.
Book a Consultation
Concerned about your child’s eye alignment? Schedule a pediatric eye exam with Dr. Daniel Baik at Nunehim Eye Center in Guro, Seoul.
Or visit us online at nunehim.com
📍 Visit Nunehim Eye Center — Guro, Seoul
Convenient access from Guro, Gasan, Gwanak & Dongjak. Near Guro Digital Complex Station (Line 2).
Address: 551 Siheung-daero, Guro-gu, Seoul / nunehim.com
Hours: Mon–Fri 09:00–18:30 (lunch 13–14), Sat 09:00–14:00
Languages: Korean & English
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