Medicine:Lateral palpebral raphe
| Lateral palpebral raphe | |
|---|---|
 The tarsi and their ligaments. Right eye; front view. | |
| Details | |
| Precursor | orbicularis oculi muscle |
| Identifiers | |
| Latin | raphe palpebralis lateralis |
| Anatomical terminology | |
The lateral palpebral raphe is a ligamentous band near the eye. Its existence is contentious, and many sources describe it as the continuation of nearby muscles. It is formed from the lateral ends of the orbicularis oculi muscle. It connects the orbicularis oculi muscle, the frontosphenoidal process of the zygomatic bone, and the tarsi of the eyelids.
Structure
The lateral palpebral raphe is formed from the lateral ends of the orbicularis oculi muscle.[1][2] It may also be formed from the pretarsal muscles of the eyelids.[3][4] It is attached to the margin of the frontosphenoidal process of the zygomatic bone. It passes towards the midline to the lateral commissure of the eyelids. Here, it divides into two slips, which are attached to the margins of the respective tarsi of the eyelids.
The lateral palpebral ligament has a tensile strength of around 12 newtons.[1]
Relations
The lateral palpebral raphe is a much weaker structure than the medial palpebral ligament on the other side of the eyelids.
Variation
The lateral palpebral raphe may be absent in some people.[2] If it is not present, it is replaced with muscular fibres of orbicularis oculi muscle.[2] It is often very hard to identify as a distinct anatomical feature.[4] Some sources claim that it does not exist.[2][5]
See also
- Orbicularis oculi muscle
- Lateral palpebral commissure
References
- ↑ 1.0 1.1 Hwang, Kun; Nam, Yong Seok; Kim, Dae Joong; Han, Seung Ho; Hwang, Se Ho (March 2009). "Anatomic Study of the Lateral Palpebral Raphe and Lateral Palpebral Ligament" (in en-US). Annals of Plastic Surgery 62 (3): 232–236. doi:10.1097/SAP.0b013e31817f9e90. ISSN 0148-7043. PMID 19240515. https://journals.lww.com/annalsplasticsurgery/Abstract/2009/03000/Anatomic_Study_of_the_Lateral_Palpebral_Raphe_and.5.aspx.
- ↑ 2.0 2.1 2.2 2.3 Goold, Lucy; Kakizaki, Hirohiko; Malhotra, Raman; Selva, Dinesh (2009). "Absence of lateral palpebral raphe in Caucasians". Clinical Ophthalmology 3: 391–393. doi:10.2147/opth.s5975. ISSN 1177-5467. PMID 19684845.
- ↑ Rosenstein, Tracy; Talebzadeh, Nojan; Pogrel, M. Anthony (2000-01-01). "Anatomy of the lateral canthal tendon" (in en). Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology 89 (1): 24–28. doi:10.1016/S1079-2104(00)80009-8. ISSN 1079-2104. PMID 10630937. https://www.sciencedirect.com/science/article/pii/S1079210400800098.
- ↑ 4.0 4.1 Muzaffar, Arshad R.; Mendelson, Bryan C.; Adams, William P. (20 September 2001). "Surgical Anatomy of the Ligamentous Attachments of the Lower Lid and Lateral Canthus" (in en). American Society for Aesthetic Plastic Surgery. https://bmendelson.com.au/wp-content/themes/BM/pdf/(2002)%20LIGAMENTOUS%20ATTCHMENTS%20OF%20LOWER%20LID.pdf.
- ↑ Kang, Hyera; Takahashi, Yasuhiro; Ichinose, Akihiro; Nakano, Takashi; Asamoto, Ken; Ikeda, Hiroshi; Iwaki, Masayoshi; Kakizaki, Hirohiko (2012-08-01). "Lateral Canthal Anatomy: A Review". Orbit 31 (4): 279–285. doi:10.3109/01676830.2012.694957. ISSN 0167-6830. PMID 22690873. https://doi.org/10.3109/01676830.2012.694957.
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