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 ...

When to See a Doctor: * If the stye does not improve within a week. * If you experience severe pain, swelling, or vision problems. * If the infection spreads to other parts of the eye or face.

Corneal abrasion pain can be severe and cause sensitivity to light (photophobia) and eye redness. Also known as a hordeolum, a stye is a painful, red bump that forms on or inside the upper or ...