A stye (medical term: hordeolum) is a common eye condition characterized by a small, painful lump or bump on the edge of the eyelid. It occurs when the oil glands at the base of the eyelashes ...

There's one particular bacterium that leads to stye infections: Staphylococcus aureus. According to Tina Singh, MD, an ophthalmologist at Duke Eye Center, it's one of the most common bacteria on ...

Medically reviewed by Christine L. Larsen, MD Eye crust forms when mucus, oils, and debris accumulate, often during sleep. This buildup is a normal part of the eye's maintenance process. However, ...

Styes are usually not related to any disease and do not harm the eye or vision. You mention your son's immune system. Although any persistent skin infection should alert you to possible low ...

Styes can cause the eye to become itchy and watery. Francesca said: “Typically, only one eye will be affected, and it's important not to try to burst the stye yourself and refrain from rubbing ...