What should you know about pink eye infection?

Infectious conjunctivitis is inflammation of the membrane over the eye and inner eyelid caused by a virus or bacterium. Redness, gritty discomfort, watering and discharge are common presentations. Viral illness may occur with cold symptoms; bacterial illness can cause thicker discharge and eyelids stuck together. Symptoms overlap, so the colour or amount of discharge does not establish the cause.

Some red-eye conditions are not routine conjunctivitis. Pain inside the eye, light sensitivity or reduced vision should change how quickly you seek care.

Wash hands after touching the face, clean discharge with a fresh pad, and avoid rubbing the eyes. Do not share towels, bedding, cosmetics or eye drops. Wash pillowcases and towels regularly while discharge continues. Stop contact lenses and replace disposable lenses or eye makeup used during the episode. A GP consultation can assess the cause and determine whether antibiotic treatment is suitable; do not start someone else’s medicine.

Arrange prompt assessment for pain, vision changes, strong light sensitivity, substantial eyelid swelling, injury or chemical exposure. A contact-lens wearer with a red eye should seek prompt clinical advice. Sudden loss of vision or severe pain needs urgent care. Seek review if symptoms worsen, discharge becomes difficult to manage or the eye is not improving.

Ask whether the infection appears viral or bacterial, how long you may be contagious, which cleaning measures matter most, and which symptoms require same-day review.