Keratitis

Definition

Keratitis is the inflammation of the cornea, often caused by infections or injury. It can lead to pain, impaired vision, and if untreated, blindness.

5 Must Know Facts For Your Next Test

1. Keratitis can be caused by bacteria, viruses, fungi, and parasites such as Acanthamoeba.
2. Symptoms include eye pain, redness, blurred vision, light sensitivity, and discharge.
3. Herpes simplex virus is a common viral cause of keratitis.
4. Contact lens wearers are at higher risk for developing microbial keratitis.
5. Diagnosis typically involves slit-lamp examination and microbiological testing of corneal scrapings.

Review Questions

• What are the common symptoms associated with keratitis?
• Which microorganism is a common parasitic cause of keratitis?
• How is keratitis generally diagnosed in a clinical setting?

Related terms

Conjunctivitis:

Inflammation or infection of the conjunctiva, often referred to as pink eye.

Acanthamoeba:

A genus of amoebae known to cause severe keratitis in contact lens users.

Corneal Ulcer: An open sore on the cornea usually resulting from infection or injury.