Internal Stye: Develops inside the eyelid and is less visible but ... Sensitivity to light. - Chronic eye conditions like blepharitis. - Touching the eyes frequently without washing hands.

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 ...

A stye is caused by infection of a gland at the ... You need to be careful that you don't get the oil into your eye, as this may sting and cause irritation.