Lashes

Lashes, or eyelashes, are short curved hairs located along the edge of the eyelids. They are more dense and longer on the upper lid than on the lower lid, and each lash grows from a separate follicle with surrounding glands in the eyelid skin.

They serve a protective role, helping to shield the eye from dust, sweat, and debris. The curvature of the lash and the movement of the lid contribute to guiding moisture away from the eye and triggering a blink reflex when an object touches the lashes.

Lashes grow in cycles. Each individual lash goes through an anagen (growth), catagen (transition), and telogen (resting) phase, with the overall cycle length and growth rate varying among individuals. Lash length and density are influenced by genetics, age, and health.

In everyday use, lashes are a focus of cosmetic care. Common products and practices include mascara, false lashes, eyelash extensions, and lash lifts. Proper hygiene, gentle cleansing, and removing makeup before sleep help prevent irritation and infection. Overuse or aggressive manipulation can cause lash breakage or temporary loss.

Health considerations include conditions such as blepharitis and styes that affect the lash line, as well as alopecia or trauma that can reduce lash density. Contaminated tools or adulterated products pose infection risks. If persistent lash loss, irritation, or eye inflammation occurs, medical advice should be sought.