Keratitis is caused by how

Cornea of eye in the highest, direct contact with the outside world, is vulnerable to invasion of pathogens or inflammation due to injury. Common cause of keratitis is caused by pathogenic micro-organisms, including bacteria, viruses and fungus infections caused by, followed by injuries and nutritional disorders.

Caused by a bacterial infection often occur after the injury of the cornea, corneal abrasions as windy and narrow eyes; not cultured dendritic corneal scratches, finger; is or corneal foreign bodies after the select operation. Due to corneal damage, local tissue defects, reduced capacity defense against bacteria, bacteria take advantage and corneal infection and keratitis. Caused by Pseudomonas aeruginosa keratitis is one of the most severe keratitis. It onset fast, can in 1-2 days within violations entire corneal, makes of breaking burst perforation, strength serious decline, in recent years because hydrophilic corneal contact mirror, is so-called of \"contact lenses\" of universal, corneal by injury of opportunities increased, coupled with green pus Bacillus anywhere is not (soil, and air, and water in the), drops eye liquid or sense placed corneal contact mirror of mirror box may was pollution, cause this keratitis of occurs more has increased, what was caused parents note.

Caused by a virus infection, often learning, tension, lack of sleep, fatigue, body resistance occurs when the drop, or as a respiratory infection and febrile diseases (such as varicella, measles) eye and different complications exist.

Often plants of ocular trauma caused by a fungal keratitis history, such as corneal branches and leaves of plants such as rice, HIV mount stab abrasions; eye long-term use of antibiotics and hormone drugs, can promote mold growth, cause fungal keratitis.

Immediately to the hospital after suffering from keratitis, determine the type of keratitis, to select the appropriate drugs and treatments.