Hair in newborns' eyes is a common occurrence that usually resolves on its own within a few weeks. It is caused by the presence of fine, soft hairs that grow on the eyelid margin. These hairs are often barely visible and do not cause any discomfort to the baby. However, in some cases, the hairs can be long enough to irritate the eye, causing redness, tearing, and discharge.
If the hairs are causing irritation, they can be gently removed with a clean, damp washcloth. It is important to avoid rubbing the eye, as this can further irritate it. If the irritation persists, it is important to consult with a healthcare professional to rule out any underlying medical conditions.