Conjunctivitis

Definition

Conjunctivitis, commonly known as pink eye, is an inflammation or infection of the conjunctiva, the transparent membrane that lines the eyelid and covers the white part of the eyeball. It can be caused by bacteria, viruses, allergens, or irritants.

5 Must Know Facts For Your Next Test

1. Conjunctivitis can be classified into three main types: viral, bacterial, and allergic.
2. Bacterial conjunctivitis often requires antibiotic eye drops for treatment.
3. Viral conjunctivitis is usually self-limiting and does not require antibiotics but may benefit from symptomatic relief such as artificial tears.
4. Allergic conjunctivitis is treated with antihistamines or anti-inflammatory eye drops to reduce symptoms.
5. Good hygiene practices, such as hand washing and avoiding touching the eyes, are crucial in preventing the spread of infectious conjunctivitis.

Review Questions

• What are the three main types of conjunctivitis?
• Which type of conjunctivitis typically requires antibiotic treatment?
• What are common treatments for allergic conjunctivitis?

Related terms

Antibiotic Eye Drops: Medications used to treat bacterial infections of the eye.

Artificial Tears: Lubricating eye drops used to relieve dryness and irritation in various types of conjunctivitis.

Antihistamines: Drugs used to counteract allergic reactions by blocking histamine receptors.