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in medicine, acute localized infection of one or more of the glands of the eyelid, with pain, swelling, and redness of the lid margin, usually caused by a staphylococcus infection. An external sty usually releases its pus and disappears in a day or so. Hot or cold compresses and antibiotic ointments are used to treat sties. Recurring sties are usually due to uncorrected refractive errors, poor general health, or infection elsewhere in the body. If a sty does not disappear in a few days, a physician should be consulted.



(also stye), an acute purulent inflammation of a sebaceous gland at the root of the eyelashes. Sties are caused by a pyogenic, usually staphylococcal, infection. A painful point appears on the margin of the eyelid at the onset of the disease. Reddening and swelling occur, and there is edema of the eyelid and conjunctiva. A yellowish abscess forms two to four days later, and, when lanced, it discharges pus. A sty is often accompanied by headache and fever. Recurrences are common. Squeezing pus from a sty may cause complications, for example, phlegmon of the orbit and meningitis.

A similar clinical picture is produced by meibomianitis—inflammation of the meibomian glands. In this condition, the inflammation develops less acutely. Treatment includes the use of dry heat, ultrahigh frequency, yellow mercury ointment, and soluble sulfacetamide solution.




, sty
inflammation of a sebaceous gland of the eyelid, usually caused by bacteria
References in periodicals archive ?
nematodes include keeping pig pens separate from vegetable fields and avoiding use of pig manure for fertilizer, especially on produce.
This minimal variation was consistent when taken from the different measuring points in all the individual pig pens.
Sodium hypochlorite is commonly used for the sanitary management of pig pens and the prevention of animal diseases.
Eastside Antelope 4-H had recipes hanging next to their pig pens for zesty pork stir fry, garlic pork tenderloin with barbecue sauce, Caribbean barbecue ham sandwich, and apple and cheddar strata.
The outbuildings include garaging and stabling with three stalls and an old loft as well as former pig pens all with some potential for conversion, subject to planning approval.
Then, to hoots of laughter, a supervisor told them to landscape an area around the pig pens in the shape of a curvy woman.
And, of course, with it being sited right next to the first of the pig pens, it would be perfect for farrowing, allowing access to the great outdoors for sows and litters to be turned out for exercise each day.
Dating from 1870, the original Mansel Court farm buildings had become unsuited to the needs of modern agriculture, so it was decided to convert the old cowsheds, bull pens, pig pens, hay barn, granary and stable.