Blepharitis

Definition

Blepharitis is inflammation of the eyelid. It is a very common eye disease that affects the edge of the eyelids and eyelash hair follicles.There are 3 main types of blepharitis:
  • Seborrheic blepharitis—Skin cells shed more rapidly than normal due to a sebaceous gland that is not functioning properly. The sebaceous gland secretes oil to the skin. The presence of excess oil and skin cells help bacteria grow.
  • Infectious blepharitis—Bacteria, in particular, staphylococcus, cause an infection in the glands along the eyelid.
  • Contact dermatitis blepharitis—Something coming in contact with the eyelid leads to local inflammation. For example, mascara may produce such an allergic reaction.
Blepharitis
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Causes

The primary types of blepharitis are caused by either a skin condition or a bacterial infection. Blepharitis often occurs along with seborrheic dermatitis and acne rosacea .

Risk Factors

Factors that may increase your chance of blepharitis include:
  • Seborrheic dermatitis
  • Acne rosacea
  • Contact allergies
  • Diabetes
  • Chemical irritants
  • Poor hygiene
  • Cosmetic makeup
  • Advanced age

Symptoms

Symptoms depend on the cause of the blepharitis. They are usually worse in the morning and involve both eyes.Blepharitis may cause:
  • Redness, flaky skin, and oily secretions along the edge of the eyelid
  • Crusty material clinging to the eyelashes
  • Eyelids “glued together” in the morning
  • Dry scales or dandruff-type material on the scalp and eyebrows
  • Itching or burning sensation
  • Tearing
  • Light sensitivity
  • Sensation of a foreign object in the eye
  • Ulcers or sores at the base of the eyelashes (in severe cases)
  • Scant, broken eyelashes
  • Nonpainful bumps in the eyelid— chalazion , which may become infected (stye)
  • Irritation or infection of issue that covers the eye and lines the inner surface of the eyelid— conjunctivitis (pink eye)

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