The most likely causes ofa painless red eyeare minorproblems such as conjunctivitis ora burst blood vessel. These conditionsdon't tend to affect your vision andnormally get better within a week or two.
Conjunctivitis is inflammation (swelling and irritation) of the conjunctiva the thin layer of tissue covering the eyeball and inner surfaces of the eyelids.
This causes the blood vessels on the eye to swell, makingone or botheyes look bloodshot and feel gritty.
Other symptoms can include itchiness and watering of the eyes, and a sticky coating on the eyelashes.
Conjunctivitis can be caused by an infection, an allergy (for example, to pollen), oran irritant, such as chlorine or dust.
Treatment will depend on what is causing the condition. Sometimes notreatment is needed, because it may get better on its own.
Your doctor mayrecommend:
This is called a subconjunctival haemorrhage.
It can look alarming, especially if you're taking medication such as aspirin or warfarin (these reduce the blood's ability to clot, which can exaggerate the redness), but it's not usually serious and should clear up on its own within a few weeks.
A red eye can be alarming, but is often just a sign of a minor eye condition, such as conjunctivitis or a burst blood vessel. If it's painful, there may be a more serious problem.
The most likely causes ofa painless red eyeare minorproblems such as conjunctivitis ora burst blood vessel. These conditionsdon't tend to affect your vision andnormally get better within a week or two
If your red eye is painful or you have other symptoms such asreduced vision, the cause is likely to be one of the below conditions. These conditions can sometimes be serious and could threaten your s