As the eyelash rubs against the eye and eyelid, this can cause irritation and potentially introduce bacteria to the eye. Sometimes, eyelashes grow inward rather than outward. If you are unsure of the cause of your inflammation, see a doctor. For example, insect bites can cause swelling and itchiness on the eyelid, which may then impact the eye as well. If your red eye is accompanied by eyelid complications, such as swelling, itchiness, or drooping, it is usually not serious. Blepharitis (Eyelid Inflammation) & Other Eyelid Complications ![]() Dry eye usually isn’t serious on its own, but it can be very irritating. The biggest indicator of dry eyes is usually when the eyes feel sore and are watery, which may also cause blurred vision. Essentially, the eye becomes irritated when it experiences a problem with its natural lubrication process. Dry Eyesĭry eyes are a very common eye health symptom that can cause red eyes. Eye infections vary in severity, with some being very mild and others requiring immediate medical attention. Infection or ConjunctivitisĬonjunctivitis, an eye infection, can cause the eye to appear red and become irritated. This can make the white of the eye look blood red due to blood leaking, but this condition is usually less serious than it seems. Sometimes blood vessels can burst in the eye, creating an effect called a subconjunctival hemorrhage. In these cases, it is usually best to treat the exposure as serious even if you don’t notice any other significant symptoms. More serious irritants that can cause red eyes include exposure to chemicals, such as cleaning products, or smoke. This process causes blood vessels in the eye to dilate, creating a reddening effect as well as irritation. The body produces histamines to help combat these allergens, which it interprets as threats. Some of the most common causes of red eyes are allergies to things such as pollen or pet dander. The most common include: Allergies & Other Irritants Multiple eye health conditions can cause red eyes. Usually, red eyes are not serious, but if symptoms persist for more than a few days, cause serious discomfort, or impact your vision, you should see a doctor as soon as possible. It is generally accompanied by other symptoms, such as these: Red eye is an eye health symptom in which blood vessels on the eye’s surface become irritated or inflamed. Eye drops don’t address the underlying issue causing eye redness. While eye drops can quickly relieve red eyes, many people don’t want to continually use eye drops. ![]() If these solutions don’t work within about a week, see a doctor to make sure there isn’t a more serious condition causing your red eyes. You can often get rid of red eyes without eye drops by avoiding allergens and other irritants, using cool compresses on your eyes, getting more sleep, and using a humidifier. While often not a serious health risk, red eyes can still cause significant irritation, and they can be unattractive.
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