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Three ligaments reinforce the lower eyelid
Hirohiko Kakizaki1, Masahiro Zako, Takashi Nakano
1Department of Ophthalmology, Aichi Medical University, Nagakute-cho, Aichi-gun, Aichi, 480-1195, Japan. cosme@d1.dion.ne.jp
Okajimas Folia Anatomica Japonica
|March 8, 2005
Summary
This study identified two new ligaments in the lower eyelid beyond the Lockwood ligament. These newly discovered eyelid ligaments may help strengthen the lower eyelid structure.
Area of Science:
- Anatomy
- Ophthalmology
- Surgical Anatomy
Background:
- The lower eyelid's structural integrity is crucial for ocular health.
- Existing knowledge primarily focuses on the Lockwood ligament, leaving other structures less understood.
Purpose of the Study:
- To elucidate ligamentous structures in the lower eyelid, specifically those distinct from the Lockwood ligament.
- To provide a detailed anatomical description of these newly identified ligaments.
Main Methods:
- Dissection of ten Oriental lower eyelids from post-mortem specimens.
- Macroscopic investigation of ligamentous structures after careful removal of orbital fat.
- Detailed examination of the origin, course, and attachments of identified ligaments.
Main Results:
- Identification of two additional ligaments in the lower eyelid, besides the Lockwood ligament.
- All three ligaments originate from the posterior lacrimal crest but diverge.
- The superior ligament attaches to the lateral orbital rim's periosteum; the inferior ligament courses towards the inferior oblique muscle.
Conclusions:
- The lower eyelid contains previously undescribed ligamentous structures.
- These ligaments likely contribute to reinforcing the lower eyelid's structural support.
- Findings enhance understanding of lower eyelid anatomy and biomechanics.