These things kindof blew my mind when I learned about them as an adult. Our great variety provides such beauty to this earth.
AI summary: Asian eyelid structure is characterized by distinct anatomical features that differ significantly from Caucasian eyelids, influencing both appearance and surgical considerations.
Monolids and Double Eyelids: The most common eyelid types in East Asia are monolids (no visible upper eyelid crease) and low or partial creases, though double eyelids are also prevalent. Approximately 50% of Asians have monolids, but this varies widely across populations. Double eyelids in Asians are typically lower in position and may be categorized as infold, on-fold, or outfold based on their relationship to the epicanthal fold.
Epicanthal Fold: A vertical skin fold covering the inner corner (medial canthus) of the eye is extremely common in Asian eyelids, especially in East and Southeast Asians. This fold is caused by redundant preseptal orbicularis oculi muscle and contributes to a more closed or narrow appearance of the eye.
Fat Distribution and Tissue Composition: Asian eyelids often have thicker subcutaneous fat, including a pretarsal fat pad and preaponeurotic fat that extends anteriorly toward the tarsal plate. This contributes to a fuller, rounder upper eyelid and can obscure the natural crease.
Anatomical Differences: The orbital septum fuses to the levator aponeurosis below the superior tarsal border in Asian eyelids (unlike above it in Caucasians), and the levator aponeurosis inserts closer to the eyelid margin, limiting the ability to form a high crease. A lower-positioned transverse ligament and submuscularis fibroadipose tissue (SMFAT) are unique to Asian eyelids.
Orbital Shape: The Asian orbit is typically taller and more circular in shape compared to the square-shaped orbit of Caucasians, contributing to the overall eye morphology.
Prisoner24601
npub16p…9k0w0
2026-03-07 12:10:22 UTC
in reply to nevent1q…9hgz
Author Public Key
npub16pa8yjzl59mdjeep9w0rh92k7swu78q8el8lawktrlpkjrdyn83q89k0w0Published at
2026-03-07 12:10:22 UTCEvent JSON
{
"id": "a2a1e33e670f2ce6242c72e8ee0a483e051bc7d3d6acc025e4f26caf9c4fe338",
"pubkey": "d07a72485fa176d967212b9e3b9556f41dcf1c07cfcffebacb1fc3690da499e2",
"created_at": 1772885422,
"kind": 1,
"tags": [
[
"alt",
"A short note: These things kindof blew my mind when I learned ab..."
],
[
"e",
"17adb1463c15d9add8cc56b44e48c841194fc994c6a12418039cfd970d38d13d",
"wss://relay.primal.net/",
"root",
"0f389bba53857d557402a4d87cf8396c0467ebc7df199298dcc9e0d29b3f148f"
],
[
"p",
"0f389bba53857d557402a4d87cf8396c0467ebc7df199298dcc9e0d29b3f148f",
"wss://relay.primal.net/"
]
],
"content": "These things kindof blew my mind when I learned about them as an adult. Our great variety provides such beauty to this earth.\n\nAI summary: Asian eyelid structure is characterized by distinct anatomical features that differ significantly from Caucasian eyelids, influencing both appearance and surgical considerations. \n\nMonolids and Double Eyelids: The most common eyelid types in East Asia are monolids (no visible upper eyelid crease) and low or partial creases, though double eyelids are also prevalent. Approximately 50% of Asians have monolids, but this varies widely across populations. Double eyelids in Asians are typically lower in position and may be categorized as infold, on-fold, or outfold based on their relationship to the epicanthal fold.\nEpicanthal Fold: A vertical skin fold covering the inner corner (medial canthus) of the eye is extremely common in Asian eyelids, especially in East and Southeast Asians. This fold is caused by redundant preseptal orbicularis oculi muscle and contributes to a more closed or narrow appearance of the eye. \nFat Distribution and Tissue Composition: Asian eyelids often have thicker subcutaneous fat, including a pretarsal fat pad and preaponeurotic fat that extends anteriorly toward the tarsal plate. This contributes to a fuller, rounder upper eyelid and can obscure the natural crease. \nAnatomical Differences: The orbital septum fuses to the levator aponeurosis below the superior tarsal border in Asian eyelids (unlike above it in Caucasians), and the levator aponeurosis inserts closer to the eyelid margin, limiting the ability to form a high crease. A lower-positioned transverse ligament and submuscularis fibroadipose tissue (SMFAT) are unique to Asian eyelids. \nOrbital Shape: The Asian orbit is typically taller and more circular in shape compared to the square-shaped orbit of Caucasians, contributing to the overall eye morphology.",
"sig": "4beaccfbf546b2dc394114f7498350fdaf5a39cbb3af0713f375a46ccf4adbc2df0a9ea1570eb287cbb34dbe111a603e83eb920ead71c7cbebfc3af9cc4cf473"
}