Red eyes in a 13-year-old are most commonly caused by conjunctivitis, also known as pinkeye. This is an inflammation of the conjunctiva, the membrane lining the inside of the eyelids and covering the white part of the eye.
Causes of Red Eyes in Teenagers
Several factors can cause red eyes, ranging from minor irritations to more serious conditions. Here are some possibilities:
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Conjunctivitis (Pinkeye): This is the most frequent cause. It's characterized by redness, and can involve watery discharge (allergic or viral) or pus (bacterial). As noted in the provided text, "A red eye is most commonly due to conjunctivitis, which can be safely managed in primary care...". If the discharge is watery, it often resolves on its own. Purulent discharge may require antibiotic treatment. KidsHealth describes pinkeye as "the most common eye problem kids can have."
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Allergies: Allergic reactions to pollen, dust, or pet dander can cause eye redness, itching, and watering.
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Eye Irritation: Foreign bodies (like dust or debris), smoke, or excessive rubbing can irritate the eyes, leading to redness.
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Corneal Abrasion: A scratch on the cornea (the clear front part of the eye) can cause redness, pain, light sensitivity, and a gritty feeling. As mentioned in Calgary Family Eye Doctors, corneal abrasions require professional attention.
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Other Less Common Causes: While less likely, conditions like dry eye, blepharitis (inflammation of the eyelids), or even more serious issues could be responsible.
When to Seek Medical Attention
While many causes of red eyes are benign, it's crucial to consult a doctor if:
- The redness is severe or accompanied by significant pain.
- There's excessive pus or discharge.
- Vision is affected.
- The redness persists for more than a few days.
- Your child is under 2 years old (as advised by the NHS).
Remember, this information is for general knowledge and does not constitute medical advice. Always consult a healthcare professional for diagnosis and treatment.
