Blepharitis is the medical term for inflammation of the eyelids. The word "blepharitis" is derived from the Greek word blepharos, which means "eyelid", and the Greek suffix itis, which is typically used to denote an inflammation in English. Inflammation is a general term used to describe the process by which white blood cells and chemicals produced in the body protect us from foreign substances, injury, or infection.


The normal body response of inflammation involves varying degrees of swelling, redness, pain, warmth, and change in function. Blepharitis is an inflammation of the eyelids, causing red, irritated, itchy eyelids, and the formation of dandruff-like scales on the eyelashes.


It is a very common eye disorder with a wide variety of causes. It affects people of all ages. Although it may be uncomfortable, annoying, or unattractive, blepharitis is not contagious and generally does not cause any permanent damage to eyesight. The condition can be difficult to manage because it tends to recur. Another term for blepharitis is granulated eyelids. Angular blepharitis is a term used to describe blepharitis which primarily affects the outer corners of the eyelids.


Signs and symptoms of blepharitis usually are present in both eyes, affecting the upper and lower lids. They can appear at any age.

Symptoms (what you feel) of blepharitis include:

  • itchy eyelids,
  • abnormal or decreased oil secretions can result in mild tearing of the eyes,
  • abnormal or decreased oil secretions can result in a feeling of dryness of the eyes,
  • burning sensation in the eyes,
  • gritty sensation in the eyes,
  • sandy sensation in the eyes,
  • foreign-body sensation (the feeling that something "may be in the eye"),
  • crusting of the eyelids,
  • irritation,
  • decreased comfort while wearing contact lenses,
  • sensitivity to light.

Signs (observations that you make) of blepharitis include:

  • red eye lid margins,
  • swollen eyelids,
  • increased shedding of skin cells near your eyelids, causing flaking of the skin around the eyes,
  • matting of the lashes or eyes "glued together" in the morning,
  • eyelids that appear greasy and crusted with scales that cling to the lashes,
  • crusted eyelashes upon awakening,
  • tears that are frothy or bubbly in nature,
  • eyelashes that grow abnormally,
  • loss of eyelashes,
  • mild scarring of the eyelid margins,
  • mild ulceration of the lid margins,
  • dry and flaky patches of skin on the lid,
  • dandruff of the lashes and eyebrows.
The symptoms and signs of blepharitis are often erroneously ascribed by the patient as being due to "recurrent conjunctivitis". They are also often mistakenly attributed to "dry eye" by patients due to the gritty sensation that may occur. Lubricating drops, however, do little to improve the condition.


Blepharitis involves the eyelid margins, where the eyelashes grow and the openings of the tiny oil glands near the base of the lashes are located. There may be involvement of the outer edges of the eyelid margins adjacent to the skin or/and the inner edge of the eyelid that comes into contact with the eyeball. Changes in the skin of the eyelids or the surface of the eye itself are usually secondary to the underlying disorder of the lid margins.


The cause of most cases of blepharitis is a malfunction of the oil glands of the lids. There are about 40 of these glands in each of the upper and lower lids. When these oil glands produce too much, too little, or the wrong types of oils, the eyelid margins can become inflamed, irritated, and itchy. Acnerosacea, a generalized illness of oil glands, is sometimes the underlying cause of this process.


There are some types of blepharitis that are due to disorders of the lid margin around the lashes. These include seborrheic blepharitis, which is similar to dandruff of the scalp, and infection of the lash base by Staphylococcal bacteria.


Allergies can also cause blepharitis. These include sensitivities to substances coming into direct contact with the lid margins, including mascara and contact lens solutions. Various sprays, exposure to animals, environmental chemicals, or airborne allergens can also cause blepharitis.


Less commonly, inflammation of the lids can be caused by a primary infection of the eyelids by bacteria or infestation of the lashes by tiny mites or head lice.


Blepharitis may also be caused by systemic (affecting areas throughout the body) medical conditions or skin cancers of various types.


In many cases, good eyelid hygiene and a regular cleaning routine can control blepharitis. This includes frequent scalp and face washing, using warm compresses to soak the eyelids, and doing eyelid scrubs.


The single most important treatment principle is a daily routine of lid margin hygiene.


The following is a typical lid margin hygiene routine:

  • Soften lid margin debris and oils: Apply a warm wet compress to the lids - suchas a washcloth with hot water - for five to 10 minutes two to four times a day, depending on the degree of symptoms. If you want to keep the compresses warm for a longer period of time, you may want to place a small hot water bottle over the compress. Using a clean washcloth for each cleansing is important.
  • Mechanically remove lid margin debris: after using the compresses, cleanse the eyelids with a cotton applicator stick soaked in a 4 to 1 mixture of water and baby shampoo or an over-the-counter lid-cleansing product. Gently and repeatedly rub along the lid margins while the eyes are closed. Be careful to avoid rubbing or scratching your eyes.


Limiting or stopping the use of eye makeup when treating blepharitis is often recommended, as its use will make lid hygiene more difficult.


If you wear contact lenses, you may have to temporarily discontinue wearing them during treatment.


Other treatment depends on the specific type of blepharitis. The key to treating most types of blepharitis is keeping the lids clean and free of crusts.


If you have dandruff, using a dandruff shampoo may help alleviate your symptoms.


In cases where a bacterial infection is the cause, various antibiotic drops or ointment and other medications may be prescribed along with eyelid hygiene.


Depending on the degree of inflammation of the lid margin, a combination of topical antibiotic and steroid drops or ointments can be prescribed by your physician.


If the blepharitis is thought to be secondary to acne rosacea, treatment with oral doxycycline might be prescribed together with the above lid-margin hygiene routine.


If the blepharitis is due to allergy, efforts should be made to identify and reduce the exposure to the offending agent.


Prescription and over-the-counter drop or oral antihistamines may be used. If it is caused by an allergy at home or at work, simply avoiding the allergen (for example, a dog or cat) may avoid future problems.


Recently, there has been some evidence that oral omega-3 fatty acids may be helpful in the treatment of blepharitis.

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