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- Patient Comments: Blepharitis - Causes
- Patient Comments: Blepharitis - Signs and Symptoms
- Patient Comments: Blepharitis - Treatment
- Patient Comments: Blepharitis - Prognosis
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- Blepharitis facts
- What is blepharitis?
- What causes blepharitis?
- What are the symptoms and signs of blepharitis?
- How do health-care professionals diagnose blepharitis?
- What are complications of blepharitis?
- What types of doctors treat blepharitis?
- What is the treatment for blepharitis? Are there home remedies for blepharitis?
- What is the prognosis for blepharitis?
- Is it possible to prevent blepharitis?
Quick GuideCommon Eye Problems and Infections
What causes blepharitis?
Blepharitis involves the eyelid margins, where the eyelashes grow and the openings of the tiny oil glands are located. There may be involvement of the skin adjacent to the outer edges of the eyelid margins and/or the inner edge of the eyelid that comes into contact with the eyeball secondary to the underlying disorder of the lid margins.
Most cases of blepharitis are posterior blepharitis, due to inflammation of the meibomian glands of the lids. There are about 40 of these glands in each of the upper and lower lids. The openings of each gland lie behind the eyelashes. The eyelid margins can become inflamed, irritated, and itchy when these glands produce abnormal secretions. Blepharitis is often seen in patients with acne rosacea, a common disorder of the oil glands of the skin of the face.
Allergies due to reactions from mascara, contact lens solutions, sprays, exposure to animals, environmental chemicals, or airborne allergens can also cause blepharitis.