Stye is a common inflammation of a ciliary follicle (duct containing the eyelashes) and its associated gland (called Zeiss’ gland). It always presents in an acute form.
It is always accompanied by swelling and redness of the eyelids; pain is a constant and can help distinguish it from chalazion. Pus is almost always evident on the eyelid rim similarly to a classic pimple.
Underlying the pathogenesis of stye is almost always Staphylococcus aureus, which is a bacterium normally found on our skin, in fact it is a so-called saprophyte.
Stye is a fairly common condition; however, it should be emphasized that should it occur with considerable frequency, it is necessary to report this picture to the ophthalmologist, who will be able to direct the patient to the most appropriate diagnostic pathway to rule out links with general pathologies.