What is one consequence of untreated blepharitis?

Untreated blepharitis can lead to significant consequences, one of which includes loss of eyelashes and, in severe cases, may contribute to conditions that could threaten vision, potentially leading to blindness. This occurs because blepharitis, an inflammation of the eyelid margins, often results in chronic irritation and an imbalance in the normal microflora of the eyelids. Inflammation can damage the hair follicles of the eyelashes, causing them to fall out. Additionally, ongoing inflammation and infection can affect the cornea and other parts of the eye, leading to complications that might result in vision loss.

In contrast, while cosmetic eyelash issues, overproduction of tears, or frequent eye infections may result from blepharitis, they are not as severe as the potential for lash loss and blindness. Thus, option B highlights the most serious repercussions of neglecting treatment for blepharitis, emphasizing the critical importance of managing this condition for overall eye health.