What Causes Itchy Eyes?
Itchy eyes, also known as ocular pruritus, are a common symptom with various underlying causes. The most frequent culprit is allergies.
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Allergies: This is the most common cause. Eye allergies (allergic conjunctivitis) can be seasonal or year-round, triggered by airborne allergens like pollen, pet dander, dust mites, and mold. [Source: Multiple sources including Hopkins Medicine, healthdirect, WebMD, and ACAAI]
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Irritants: Substances like dust, smoke, certain cosmetics (makeup, lotions), and contact lens solutions can irritate the eyes, causing itching. [Source: Multiple sources including Hopkins Medicine]
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Infections: Bacterial, viral, or parasitic infections of the eye can also lead to itching. [Source: Healthline]
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Dry Eye Syndrome: A lack of sufficient lubrication in the eyes can result in itching and discomfort. [Source: American Academy of Ophthalmology]
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Blepharitis: This eyelid inflammation causes redness, swelling, irritation, and itching, often accompanied by crusty flakes on the eyelashes. [Source: National Eye Institute]
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Other Conditions: Conditions like meibomian gland dysfunction and contact lens-induced conjunctivitis can also contribute to itchy eyes. [Source: American Academy of Ophthalmology]
Understanding the Problem: Allergic Conjunctivitis
Allergic conjunctivitis is a significant cause of itchy eyes. Exposure to allergens leads to an immune response, resulting in eye irritation, redness, itching, and tearing. This can be seasonal (e.g., hay fever) or occur year-round depending on the allergen.
Seeking Relief
While this information is for educational purposes and not medical advice, if you experience persistent or severe itchy eyes, consulting an ophthalmologist or allergist is recommended for proper diagnosis and treatment.
