An eyelash (also called lash) (Neo-Latin: cilium, plural cilia) is one of the hairs that grows at the edges of the top and bottom eyelids, spanning outwards and away from the eyes. The lashes grow in up to six layers on each of the upper and lower eyelids. [1]

Jul 24, 2023 · The lash has an inner medulla composed of cells, a surrounding medulla or cortex, which is stiffer and gives the lash strength and rigidity, and the outer concentric layer which is the cuticle. The cuticle, which is impermeable, protects the inner part of the lash.

Jan 22, 2025 · Structure and Anatomy. The eyelash is a specialized hair structure located on the edge of the eyelid. It is an important component of the eye’s defense system, and its anatomy reflects its role in protecting the eye.

Using the database of Ovid MEDLINE, we reviewed studies specifically directed on human/mammalian eyelashes and key articles on current trends in scalp hair methodologies that can be applicable to lash research.

Eyelashes are arranged in 2–3 rows along the margin of the eyelid. They are longer, more numerous and curved superiorly on the upper eyelid. They emerge from the skin of the lid margin just anterior to the transition of the conjunctiva (inner eyelid) to skin (external eyelid).

Feb 19, 2019 · The upper eyelid houses 90-150 upward-curving, longer eyelashes while the lower eyelid houses about 70-80 down-ward, shorter eyelashes. The root of each eyelash is anchored to the root hair plexus which tells the brain to blink instantly – the protective response.

The eyes, often referred to as the windows to the soul, are accentuated by the delicate and captivating presence of eyelashes. In this section, we will delve into the fascinating world of lash anatomy, uncovering the intricate structure and pivotal functions of …

Feb 2, 2021 · Eyelashes (commonly referred to as “lashes”) can be defined as the short strands of hair that grow at the edges of the eyelids. The average human has 75 to 80 lashes on the bottom eyelid and 90 to 160 lashes on the top eyelid.

Mar 4, 2019 · Read an overview of general eye anatomy to learn how the parts of the eye work together. Eyelashes are the short hairs that grow along the edge of our eyelids. They protect our eyes from dust. They sense things close to the eye and cause us to blink.

Oct 21, 2021 · Eyelash Structure: From outside to inside: (1) Cuticle The outermost impermeable layer of lash, offering protection to the internal structures. (2) Cortex Ensures the strength and stability of lash, containing melanin, which results in pigmentation of lash.