Red, itchy eyes – could it be conjunctivitis?

24 April 2025

Have you noticed your eyes are red, itchy, and maybe a bit watery? These symptoms are quite common and can be linked to various causes, with one of the most frequent being conjunctivitis.

Conjunctivitis is the inflammation of the conjunctiva, the thin membrane that covers the white part of the eye and the inside of the eyelids. It can be caused by viruses, bacteria, allergies, or irritants such as smoke or pool chlorine.

How can you tell if it's conjunctivitis?
Some typical symptoms include:

• Red eyes

• Itching or a foreign body sensation

• Constant tearing

• Discharge (yellow or green in bacterial infections; clear in viral or allergic ones)

• Light sensitivity

• Sticky eyelids upon waking

Important: Not all eye discomfort is conjunctivitis. For instance, dry eyes, excessive screen use, or seasonal allergies can also cause redness and itching.

Types of conjunctivitis:

• Viral: Highly contagious. Often starts in one eye and spreads to the other. Does not require antibiotics.

• Bacterial: Also contagious. Produces thick discharge. Usually treated with antibiotic eye drops.

• Allergic: Not contagious. Affects both eyes and is often accompanied by sneezing and nasal congestion.

If symptoms last more than two days, involve severe pain, blurred vision, or extreme light sensitivity, it’s important to see a specialist. A proper diagnosis helps avoid complications and ensures the right treatment.