Bloodshot
Bloodshot
Bloodshot (/ˈblʌdʃɒt/), from the Old English blōd meaning "blood" and sceotan meaning "to shoot", is a term used to describe eyes that appear red due to enlarged and congested blood vessels. This condition can occur due to various reasons, including eye strain, allergies, infections, or trauma.
Causes
Eye strain is one of the most common causes of bloodshot eyes. This can occur when the eyes are used for prolonged periods, such as when reading, using a computer, or driving.
Allergies can also cause bloodshot eyes. When the body encounters an allergen, it releases histamines, which can cause the blood vessels in the eyes to enlarge and become visible.
Infections, such as conjunctivitis (also known as pink eye), can cause the eyes to become bloodshot. This is due to inflammation and irritation of the conjunctiva, the thin layer of tissue that covers the white part of the eye.
Trauma or injury to the eye can also result in bloodshot eyes. This can occur from a direct blow to the eye, exposure to foreign objects, or chemical exposure.
Symptoms
In addition to the red appearance, bloodshot eyes may also be accompanied by other symptoms such as eye pain, itching, swelling, discharge, or changes in vision. If these symptoms are present, it is important to seek medical attention.
Treatment
Treatment for bloodshot eyes depends on the underlying cause. This may include rest, avoiding allergens, using over-the-counter eye drops, or seeking medical treatment for infections or injuries.
Related Terms
External links
- Medical encyclopedia article on Bloodshot
- Wikipedia's article - Bloodshot
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