Irritant conjunctivitis: symptoms, care, and warning signs

Smoke, dust, chlorine, fumes, cosmetics, contact-lens products, or a splash of a household chemical can irritate the conjunctiva, the thin surface covering the white of the eye. Redness, watering, burning, gritty discomfort, and mild swelling may occur; discharge can also be present. Irritant conjunctivitis is a form of conjunctivitis, but infection and allergy can look similar. Light sensitivity, worsening pain, or a change in vision needs more careful assessment.

If a chemical entered the eye, the exposure details and immediate rinsing matter. Do not rub the eye, as this can further disturb the surface.

Move away from the irritant and rinse the eye with clean, lukewarm running water if exposure has occurred. Remove contact lenses and do not wear them again until the eye feels well and a clinician advises it. Use a clean cool compress, wash hands before touching the area, and avoid sharing towels or eye products. A GP Consultation can help distinguish irritation from infection or another eye problem. Antibiotic Treatment is not useful for every red or watery eye and should only be used when prescribed.

Get emergency help after a chemical splash, especially if pain, blurred vision, marked redness, or light sensitivity remains after rinsing. Seek prompt assessment for severe pain, reduced vision, a foreign body that will not wash out, or symptoms in a contact-lens wearer. Arrange medical advice if eye discharge, swelling, or redness is worsening or not settling.

Tell the clinician what entered the eye, when it happened, whether one or both eyes are affected, and whether you wear contact lenses. Ask whether the pattern suggests irritation, infection, allergy, or a surface injury, and which drops are suitable.