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Orbicularis oculi muscle tightening for involutional entropion
Hitoshi Nemoto1, Tomoichiro Togo1, Naoki Maruyama1
1Department of Plastic and Reconstructive Surgery, Showa University Fujigaoka Hospital, Yokohama, Kanagawa, Japan.
Summary
This study introduces a new surgical technique for involutional entropion (IE) using orbicularis oculi muscle (OOM) tightening. The minimally invasive method shows low recurrence rates and good cosmetic results for eyelid correction.
Area of Science:
- Ophthalmology
- Plastic Surgery
- Surgical Techniques
Background:
- Involutional entropion (IE) is a common condition affecting the lower eyelid.
- The exact cause of IE is debated, but orbital fat protrusion is considered a significant factor.
Purpose of the Study:
- To present a novel surgical technique for correcting involutional entropion.
- To evaluate the efficacy and safety of this technique through a retrospective case study.
Main Methods:
- The technique involves repairing the preseptal orbicularis oculi muscle (OOM) of the lower eyelid.
- A retrospective review of 56 patients (70 eyelids) who underwent the procedure between 2005 and 2014.
- Follow-up was conducted for 2 years, with data collected on operation time, recurrence, and complications.
Main Results:
- The mean operation time was 37.6 minutes.
- A low recurrence rate of 5.7% was observed, with successful outcomes after repeat surgery.
- One case of over-correction (ectropion) occurred, managed with a local skin flap.
Conclusions:
- The novel technique effectively corrects involutional entropion by tightening the orbicularis oculi muscle (OOM) to reduce orbital fat protrusion.
- Advantages include ease of execution, minimally invasive nature, short operative times, low recurrence, and favorable aesthetic outcomes.
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