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 three 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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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.