| 英文描述 | Purulent conjunctivitis is characterized by a purulent discharge and bacterial component. Corneal involvement ranging from superficial vasculerization to ulceration and pigmentary keratitis is common. Causes include viral or bacter- ial infection, allergens, or irritation from trauma, foreign body or chemicals. May be acute or chronic. Chronic form may be refractory and results in lessened tear production. Unilateral involvement suggests a secondary cause. Dx by culture, Schirmer tear test, exam, conjunctival scrapings. |
|---|