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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 ?
This indicated that it was largely influenced by the outside temperature It is also worth noting that the temperature difference between the upper and lower parts of the pig pens was relatively steady in the EPH at about 1 [degrees]C (excluding the alley, 6th measured spot).
Sodium hypochlorite is commonly used for the sanitary management of pig pens and the prevention of animal diseases.
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.
Keepers at the zoo now make sure the pig pens are clear of acorns every day and Poppy is back to his best.
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.
They include a calf shed, loose boxes, Dutch barns and pig pens with a yard area and separate road access.
OK, so they are often the main topic in our conversations but when you've taken pigs to a show and you're surrounded by pig pens and pig people, chances are one of the group will come up with some porcine patter.
Other things on my mind include preparing a joint presentation with Gerry (we've a talk on smallholding at the show on Sunday), getting display materials about my herd ready for my pig pens, packing everything I'm going to need - for me and the pigs - practising reversing the trailer, and familiarising myself with how everything works in the new little caravan which is to become my home from Friday to Sunday.
Still, by the time you read this, we'll have some brand new paddocks to put them into, because our fencing contractor Paul Davies is back, making some additional pig pens by sub-dividing the old sheep fields.