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Eyelid Inflammation (Blepharitis): Causes, Symptoms, and Treatments
Blepharitis is inflammation of the eyelash follicles. Allergies, mites, dandruff, and certain medications may increase the likelihood of this condition.
https://www.healthline.com/health/blepharitis
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12 causes and treatments of a swollen eyelid: Stye, chalazion, allergies
A swollen eyelid can vary from mild irritation to affecting a person's vision. Most conditions are harmless, but it might be a good idea to visit a doctor for advice. This article looks at 12 of the most common causes of a swollen eyelid, which include styes, cosmetics, allergies, ocular herpes, and blepharitis.
https://www.medicalnewstoday.com/articles/318219
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What is a Chalazion?
If you wake up one morning and notice a small swelling or lump on your eyelid, don’t worry too much. It may just be due to a blocked gland.
https://www.webmd.com/eye-health/chalazion-what-is
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Chalazion
A chalazion is a slowly developing lump that forms due to blockage and swelling of an oil gland in the eyelid. A chalazion is generally not an infection.
https://www.aoa.org/patients-and-public/eye-and-vision-problems/glossary-of-eye-and-vision-conditions/chalazion
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Chalazion: Causes, Risk Factors, and Symptoms
Learn about the causes, risks, symptoms, and treatment for chalazia, and the difference between a chalazion and a stye.
https://www.healthline.com/health/chalazion
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What Are Chalazia and Styes? - American Academy of Ophthalmology
A chalazion and a stye are both lumps in or along the edge of an eyelid. In some situations it may be difficult to distinguish between a chalazion and stye.
https://www.aao.org/eye-health/diseases/what-are-chalazia-styes
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Hordeolum (Stye) | Johns Hopkins Medicine
A stye is a tender red bump on the edge of your eyelid.
https://www.hopkinsmedicine.org/health/conditions-and-diseases/hordeolum-stye
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External Eyelid Stye (Hordeolum Externum)
An external eyelid stye is a red, painful bump on the surface of the eyelid. Learn about external eyelid stye symptoms, causes, treatment, and prevention.
https://www.healthline.com/health/stye
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Hordeolum
The CMGs are guidelines on the diagnosis and management of a range of common and rare, but important, eye conditions that present with varying frequency in primary and first contact care.
https://www.college-optometrists.org/guidance/clinical-management-guidelines/hordeolum.html
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Chalazion and Stye (Hordeolum) - Eye Disorders - Merck Manuals Consumer Version
Chalazion and Stye (Hordeolum) - Learn about the causes, symptoms, diagnosis & treatment from the Merck Manuals - Medical Consumer Version.
https://www.merckmanuals.com/home/eye-disorders/eyelid-and-tearing-disorders/chalazion-and-stye-hordeolum