3 Types of Conjunctivitis: Viral, Bacterial, and Allergic

Red, irritated eyes can leave you wondering what caused them and what you should do about them. Conjunctivitis, commonly called pink eye, is inflammation of the conjunctiva and can have several causes. Three common types are viral, bacterial, and allergic conjunctivitis. Although they can look similar, certain symptoms can help distinguish one type from another.

At Schwartz Laser Eye Center, our board-certified ophthalmologists provide comprehensive eye care in Scottsdale, Glendale, and Mesa, AZ. Our team includes Dr. Jay L. Schwartz and Dr. Orry Birdsong, along with skilled optometrists experienced in diagnosing and managing a wide range of eye conditions.

Understanding the Different Types of Conjunctivitis

Viral, bacterial, and allergic conjunctivitis share some common symptoms, but understanding their differences can help you know what to look for:

1. Viral Conjunctivitis

Viral conjunctivitis is a common infectious form of pink eye. It often causes redness, irritation, tearing, and watery discharge. Some people may also have symptoms of an upper respiratory infection around the same time.

Because viral conjunctivitis can spread through contact with contaminated hands and personal items, good hygiene is particularly important. An eye doctor can examine your eyes and guide appropriate care.

2. Bacterial Conjunctivitis

Bacterial conjunctivitis can also cause red, irritated eyes. One notable difference is that the discharge may be thicker or mucus-like. Eyelids that stick together, particularly after sleeping, can also suggest a bacterial cause.

Since viral and bacterial conjunctivitis can have similar symptoms, it may be difficult to determine the cause by appearance alone. A professional eye examination can help clarify the diagnosis and guide suitable care.

3. Allergic Conjunctivitis

Allergic conjunctivitis occurs when the conjunctiva reacts to an allergen rather than an infection. It commonly affects both eyes and is especially associated with itching, redness, watering, and swelling.

Seasonal allergens such as pollen may contribute to symptoms. Management may include limiting exposure to known allergens and following your doctor’s eye care recommendations.

Find Conjunctivitis Care in Scottsdale, AZ

Knowing the types of conjunctivitis can help you better understand what may be behind red, itchy, or watery eyes, but similar symptoms can make self-diagnosis difficult. Schwartz Laser Eye Center can evaluate your eyes, determine the likely cause, and discuss appropriate care.

To schedule an eye examination at our Scottsdale, Glendale, or Mesa location, call (480) 483-3937 or 1(888) 553-3937.