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When considering under-eye fat repositioning, worries often arise such as "Could strabismus develop or could my vision worsen?" To answer directly: strabismus and diplopia are rare but actually reported complications. Since these are not common outcomes, excessive fear is unnecessary, but it is important to understand the anatomical risk structure and have thorough consultations with an experienced specialist surgeon.
Do Strabismus and Vision Problems Really Occur as Side Effects of Under-eye Fat Repositioning?
Since this is a surgical procedure involving fat beneath the eyes, the distance from structures surrounding the eyeball is closer than expected. In a case report published in PubMed Central, cases of esotropia resulting from damage to extraocular muscles after orbital fat surgery have been recorded. Additionally, in research published in the European Journal of Plastic Surgery, three cases of temporary inferior oblique muscle palsy have been reported following conjunctival incision fat repositioning surgery.
Although these cases are said to be rare, major domestic media outlets including Financial News have also reported cases of strabismus side effects following under-eye fat surgery, making it necessary to obtain sufficient information before surgery.
To summarize:
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✓ Strabismus and diplopia occur infrequently but are actually reported complications in clinical practice
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✓ Temporary extraocular muscle dysfunction and permanent damage should be understood as distinct
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✓ Selecting an experienced surgeon who understands anatomical risk structures is the key prevention point
Mini Q&A
Q. How rare is strabismus among under-eye fat repositioning side effects?
A. In most under-eye fat repositioning surgeries including the conjunctival incision method, strabismus is classified as a rare complication. However, "rare" does not mean "impossible," so it is strongly recommended that you discuss this point with your surgeon before surgery.
Why Can Under-eye Fat Repositioning Affect Strabismus and Vision? — Understanding Anatomical Structure
In the space beneath the eyes, extraocular muscles that move the eyeball, the optic nerve, and fine blood vessels are located very close to the fat layer. According to clinical data, these structures are intricately intertwined, and even small surgical mistakes can lead to functional complications. In fact, a case reported in PubMed Central documents an instance of scleral perforation following periorbit fat transplantation, leading to serious complications including vitreous hemorrhage, retinal incarceration, and extraocular muscle entrapment.
However, the risk level varies depending on the surgical approach method. Research in the European Journal of Plastic Surgery reports that the conjunctival incision approach has a lower complication incidence rate compared to the skin incision (lower eyelid) method and provides superior cosmetic results, indicating that the choice of surgical method itself is an important safety factor.
Summary of Anatomical Risk Points
| Structure | Location | Symptoms if Damaged |
|---|---|---|
| Inferior oblique muscle (extraocular muscle) | Adjacent to orbital fat layer | Diplopia, strabismus |
| Optic nerve and retinal blood vessels | Deep orbit | Vision decline, visual field abnormalities |
| Fine blood vessels | Distributed between fat layers | Hematoma, rarely vascular occlusion |
How 21plastic surgery Approaches Side Effect Risks — Conjunctival Incision and Precision Surgical Planning
Differences in surgical method have actual effects on complication risk levels. In a meta-analysis from Annals of Plastic Surgery analyzing 4,671 patients, the overall complication rate was reported at approximately 11.2% (95% CI: 6.0–17.7%), with a revision surgery rate of approximately 2.4%. These figures show significant variation depending on surgical method, surgeon experience, and patient selection criteria.
The European Journal of Plastic Surgery also explicitly states that the conjunctival approach has lower complication incidence and superior cosmetic results compared to the skin incision method.
Conjunctival Incision vs Skin Incision (Lower Eyelid) Comparison
| Item | Conjunctival Incision Method | Skin Incision (Lower Eyelid) Method |
|---|---|---|
| Incision location | Inside conjunctiva (inner eyelid surface) | Below eyelid skin |
| External scarring | Not visible to the eye | Possibility of fine scars |
| Combined lower eyelid tightening | Can share incision opening | Separate incision required |
| Complication incidence rate | Relatively low (literature evidence) | Relatively high |
| Recovery speed | Relatively fast | Comparatively longer |
21plastic surgery uses the conjunctival incision method to share the incision opening, reducing scar burden, and systematically establishes customized surgical plans tailored to each individual's anatomical structure. This allows simultaneous under-eye fat repositioning and lower eyelid tightening to be performed without unnecessary additional incisions, achieving both improvement effects together.
Before Under-eye Fat Repositioning, Definitely Check These Things If You Fall Into These Categories
According to clinical data, strabismus and vision-related complications are by no means common occurrences, but given the anatomical characteristics of this area, this is something that must be understood beforehand. Additionally, clinical research registered in ClinicalTrials.gov (NCT06929130) reports complications that can affect vision such as post-operative refractive changes, so those with underlying ophthalmological diseases require particularly careful advance verification.
Try using the checklist below during your pre-surgery consultation.
Pre-surgery Self-Check Checklist
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✓ Do you currently have any underlying eye conditions such as strabismus, diplopia, or amblyopia
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✓ Do you have any history of eye-surrounding surgery (double eyelid, eye shape correction, lower eyelid, etc.)
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✓ Do you have eye dryness or corneal abnormalities from long-term contact lens wear
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✓ Do you have systemic diseases that affect orbital structure such as thyroid eye disease (Graves' disease)
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✓ Have you confirmed the surgeon's conjunctival incision method surgical experience and clinical career
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✓ Is there a post-operative management protocol capable of immediate response if abnormal symptoms develop after surgery
If you are reviewing under-eye fat repositioning in Shin-Nonhyun, lower eyelid surgery in Gangnam Station area, or lower eyelid procedures in Nonhyun, organizing the above items before your consultation will make communication with the surgeon much smoother. Those living near Shin-Nonhyun Station and Gangnam Station as well as those from adjacent areas can all receive equal consultation.
Gangnam Under-eye Fat Repositioning, Let's Address Side Effect Concerns Together
Don't leave your strabismus and vision concerns vague—we recommend working through the anatomical structure step by step at 21plastic surgery. In research published in PubMed Central, analysis of 97 patients who underwent conjunctival incision surgery performed by an experienced single surgeon showed zero major complications, with patient satisfaction averaging 3.63/4 points (67% reported "very satisfied"). Additionally, research published in PubMed reports that after conjunctival incision fat repositioning surgery, patient satisfaction and social confidence significantly improved, and all complications that occurred resolved temporarily.
Sufficient understanding of side effects and surgeon selection are the starting point for satisfying surgical results. 21plastic surgery conducts customized consultations tailored to individual periocular structures, including the conjunctival incision method and simultaneous lower eyelid tightening surgery, so we encourage you to work through any concerns one by one.
Under-eye Fat Repositioning Side Effects: We've Gathered Only the Frequently Asked Questions
Q1. Can strabismus be recovered if it develops after under-eye fat repositioning?
A. Strabismus occurring after surgery is divided into cases resulting from temporary extraocular muscle dysfunction and those resulting from permanent damage. Minor complications such as temporary inferior oblique muscle palsy are reported to resolve naturally within weeks to months in most cases. In cases where the extraocular muscle is directly damaged, additional treatment may be necessary, so if abnormal symptoms persist, it is important to visit immediately for confirmation.
Q2. Which is safer between the conjunctival incision method and skin incision (lower eyelid) method?
A. According to academic research, the conjunctival incision method is reported to have lower complication incidence rates and superior cosmetic results compared to the skin incision (lower eyelid) method. However, the choice of surgical method may vary depending on individual eye conditions and objectives, so it is good to make a decision through thorough pre-surgery consultation with your surgeon.
Q3. What should I do immediately if my visual field becomes abnormal after under-eye fat repositioning?
A. If symptoms such as diplopia, blurred vision, or vision decline appear after surgery, you must contact your operating hospital immediately and visit. If necessary, detailed examination through ophthalmology consultation will be conducted. The faster you respond after symptom development, the better the prognosis can be, so never neglect it.
Q4. If I undergo under-eye fat repositioning and lower eyelid tightening simultaneously, doesn't that increase side effect risk?
A. When proceeding with the conjunctival incision method, the incision openings for under-eye fat repositioning and lower eyelid tightening can be shared, so unnecessary additional incisions do not occur. This allows the manipulation range to be managed even more efficiently compared to performing the two procedures separately. However, suitability for simultaneous surgery varies depending on individual circumstances, so expert consultation must always precede the decision.
Q5. Is there something I absolutely must confirm during pre-surgery consultation?
A. ① Surgeon's clinical experience with conjunctival incision method, ② surgical method used (conjunctival incision vs skin incision), ③ response protocol if abnormal symptoms develop after surgery, ④ whether you have any underlying eye conditions—you must definitely confirm these four things. If you note these four points before consultation, a much more productive consultation will be possible.
ℹ️ Procedure effects vary by individual; please make a decision after consultation with a specialist.