Is it harmful if an eyelash falls into the eye and is not removed?

Eyelashes usually refer to the hairs on the eyelid margins. Whether having eyelashes fall into the eyes and remain unretrieved is harmful depends on factors such as the amount of eyelashes and whether they cause infection.

1. Harmless

If only a very small number of tiny eyelashes fall into the eye and do not irritate the ocular surface or cause discomfort such as pain or dryness, they typically pose no harm to the eyeball.

2. Harmful

If relatively large eyelashes fall into the eye and are not removed, they may cause certain damage. For example, the eyelash may repeatedly rub against the eye's surface, causing a foreign body sensation, leading to tearing and frequent blinking. Prolonged exposure may result in conjunctival or corneal infections, causing eye conditions such as conjunctivitis or keratitis, which can lead to eye swelling and redness. Additionally, prolonged eye rubbing due to irritation from eyelashes may damage the conjunctival or corneal tissues, or even cause sheet-like shedding of the corneal epithelium. In severe cases, this may lead to blurred vision or decreased visual acuity.

    It is recommended to seek timely medical attention at a hospital, where a professional doctor can safely remove the eyelash from the eye and reduce ocular irritation. After an eyelash falls into the eye, avoid excessive rubbing. Instead, try rinsing the eye with clean lukewarm water or using eye drops to help flush out the foreign object.