What condition can result from an infection of a blocked gland in the eyelid?

A stye, known clinically as a hordeolum, is a localized infection that occurs in the oil glands of the eyelid, often resulting from a blockage of these glands. The infection leads to inflammation and redness, which can cause a painful, swollen lump on the eyelid.

This condition typically arises when bacteria, often Staphylococcus aureus, invade the blocked gland, leading to pus formation. While other conditions listed may affect the eye or eyelid, they do not specifically arise from a blocked gland infection. Understanding that a stye is directly caused by this specific blockage and subsequent infection is crucial for recognizing and diagnosing the condition effectively.