KGO Radio talk show host Ronn Owens discusses battle with Parkinson's disease. One of the Bay Area's best-known radio hosts recently revealed he has Parkinson's disease. The entire interview airs Sunday at 10 a.m. on ABC7.
A chalazion is sometimes the aftereffect of a sty. It is less tender but lasts longer. Natural oils from the eyelid's oil glands must drain through ducts out to the eyelashes. If debris blocks this normal drainage, it may cause a sty or chalazion. Sometimes, this debris accumulates because of a condition called blepharitis, a long-standing inflammation of the edges of the eyelids, with redness, thickening and scales and crusts.
It can develop on the lower or upper eyelid, and it often disappears without treatment in about one month. However, you should see a doctor if you think you might have a chalazion, especially if it is large enough to block your vision. In rare cases, chalazia are caused by skin cancer. A chalazion is similar to a stye (an enflamed oil gland on the eyelid), but is usually smaller and less painful.