Belt Buckle Ectropion: A Unique Cause of Lower Eyelid Misalignment Post-Mohs Reconstruction
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By
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Gokce Cinel Pasa
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Addison M. Demer
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Lilly H. Wagner
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March 25, 2026
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Clinical Scorecard: Belt Buckle Ectropion: A Unique Cause of Lower Eyelid Misalignment Post-Mohs Reconstruction
At a Glance
| Category | Detail |
|---|
| Condition | |
| Key Mechanisms | Horizontal flap tension on a lax tarsus leading to anterior tarsal tilt, emphasizing the mechanism. |
| Target Population | |
| Care Setting | |
Key Highlights
- Belt buckle ectropion is distinct from cicatricial ectropion.
- It is caused by horizontal tension rather than vertical skin shortage.
- Management typically involves lateral tarsal strip procedures.
- Recognition of this mechanism can prevent misclassification.
- Preoperative assessment of eyelid laxity is crucial for management.
Guideline-Based Recommendations
Diagnosis
- Identify anterior lamella-only defects and assess for horizontal flap tension.
- Perform a forced traction test to evaluate eyelid laxity.
Management
- Correct with lateral tarsal strip procedures rather than skin grafting.
- Consider conservative management for mild cases.
Monitoring & Follow-up
- Observe for spontaneous resolution or persistent symptoms postoperatively.
Risks
- Potential for chronic eye discomfort and ocular exposure if untreated.
Patient & Prescribing Data
Conservative management may be sufficient in some cases, while others may require surgical intervention based on symptom severity.
Clinical Best Practices
- Perform a snap-back test to assess eyelid laxity preoperatively.
- Plan flaps carefully to minimize horizontal tension.
- Monitor patients closely for signs of ectropion after surgery.
- Educate patients on potential symptoms and the importance of follow-up.
References
