Also known as: Conjunctival Hyperemia
Eye redness occurs when blood vessels on the eye's surface become dilated or inflamed. It can result from irritation, infection, allergies, or more serious eye conditions.
Eye redness is one of the most common eye complaints. In most cases, it results from minor irritation or infection and resolves without lasting effects. However, certain patterns of redness signal conditions requiring prompt treatment.
Conjunctivitis (pink eye) is the most common cause, presenting as diffuse redness with discharge — viral, bacterial, or allergic. Allergic conjunctivitis causes bilateral itching and watering.
A painful red eye with vision changes, photophobia, or a fixed pupil may indicate serious conditions like acute glaucoma, uveitis, or keratitis, which require same-day ophthalmologic evaluation.
There are several possible reasons you may be experiencing Eye Redness. Here are the most common ones.
Infection or allergy causing inflammation of the clear membrane over the white of the eye, with discharge and tearing.
Pollen, dust, or pet dander cause bilateral itchy, watery, red eyes.
Insufficient tear production or rapid evaporation causes chronic irritation and redness.
A burst blood vessel causes a bright red patch on the white of the eye. Looks alarming but is usually harmless.
These approaches may help manage eye redness at home. Always consult a healthcare provider if symptoms persist or worsen.
Lubricating drops soothe dry, irritated eyes and flush out allergens.
A cold cloth over closed eyes reduces allergic inflammation and swelling.
Rubbing irritated eyes worsens inflammation and risks spreading infection.
Eye examination with slit lamp, fluorescein staining for corneal damage, intraocular pressure measurement, and cultures if infection suspected.
Seek urgent care if redness is accompanied by severe pain, vision changes, sensitivity to light, a foreign body sensation that won't go away, or eye injury.
Steps you can take to reduce the likelihood of experiencing eye redness.
Wash hands before touching eyes
Replace contact lenses as directed
Take screen breaks
Protect eyes from wind and allergens
Painless redness with minor irritation is usually not urgent. Painful redness with vision changes needs same-day evaluation.
Pink eye typically causes diffuse redness with discharge (watery or thick), tearing, and mild grittiness.
Subconjunctival hemorrhage looks dramatic but is usually harmless, resolving in 1-2 weeks without treatment.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.