What is conjunctivitis?
What causes conjunctivitis?
Viral Conjunctivitis
Caused by a virus, similar to the common cold. It is highly contagious and can spread through contact with infected surfaces or by touching the eyes.
Bacterial Conjunctivitis
Caused by bacteria and often associated with a yellow or greenish discharge. It can be contagious and may require antibiotic treatment.
Allergic Conjunctivitis
Triggered by allergens such as pollen, dust, or pet dander. It is not contagious.
Irritant Conjunctivitis
Caused by irritants like smoke, chemicals, or foreign bodies in the eye.
Key features of conjunctivitis
The blood vessels in the conjunctiva become inflamed, giving the eye a pink or red appearance.
Itching
The affected eye or eyes may feel itchy and irritated.
Tearing
Excessive tearing or watery eyes is a common symptom.
Discharge
Depending on the cause of conjunctivitis, there may be discharge from the eyes. This discharge can be clear, watery, or thicker and more purulent.
Sensitivity to Light
Some individuals with conjunctivitis may experience light sensitivity.
Treatment for conjunctivitis
The treatment of conjunctivitis depends on the cause:
Viral Conjunctivitis
Generally resolves on its own. Cold compresses and artificial tears may help alleviate symptoms.
Bacterial Conjunctivitis
Typically treated with antibiotic eye drops or ointment.
Allergic Conjunctivitis
Antihistamine eye drops or oral medications can be used to manage symptoms.
Irritant Conjunctivitis
Removing the irritant and using artificial tears may help.
