Blepharitis
Blepharitis is a chronic inflammation of the eyelids and
it is one of the most common problems we see in the office. Patients with
blepharitis often complain of itching, burning, a chronic mild foreign
body sensation, and mattering on lashes (particularly in the morning).
Patients who also have dry eyes seem to be bothered the most by blepharitis.
There are several causes for blepharitis but by far the
most common are Staphylococcal bacterial infection, meibomian gland dysfunction
(these glands of the eyelid produce components of the eye's tear film)
and seborrhea. Staph infection of the eyelid commonly begins in childhood
and continues for life. Bacteria such as staph, like it or not, colonize
on our bodies; such colonization on the eyelids can lead to crusty deposits
along the lashes, irregularity and redness of the lid margin and a red
irritated eye. It is likely that decreased tear production (dry eye) may
predispose individuals to such Staph blepharitis by altering local resistance
to such bacteria. If the lash or lid glands become involved a stye or
chalazion (a blocked and enlarged lid gland) may result. The goal to treatment
is to reduce the amount of bacteria on the eyelid margins.
Meibomian gland dysfunction can cause eyelid redness and
irritation. Their secretions often fill the glands and thicken the eyelid
margin. This is best initially treated with daily warm compresses and
gentle lid message to express the material from the glands. Oral antibiotics
can be helpful in severe cases.
Seborrhea is a skin disorder that can affect the eyelids
and cause a greasy, waxy, scaling accumulation of skin along the lid margin.
The oil producing glands in the lid are overactive. Seborrhea can also
affect other areas of skin such as the scalp, back, chest and behind the
ears. If the scalp is affected, daily treatment of scalp seborrhea with
medicated shampoo may help the eyelids as well.
The initial step in treating all forms of blepharitis is
to undertake eyelid hygiene. Most patients simply apply a warm compress
for a few minutes to soften adherent material and/or warm the meibomian
secretions, then clean the eyelid margins. To clean the lid margins, we
recommend placing a few drops of baby shampoo into a cup of warm water
then use this solution to gently scrub the lashes and eyelid margins with
a wash cloth or cotton applicator. Simply use warm water alone if the
shampoo is irritating. We recommend doing this daily, for life, in all
blepharitis patients. When the irritation and redness really flare up
it is wise to scrub the lids more than once a day. Artificial tears can
also provide some comfort, particularly if the eyes are also dry. Only
in recalcitrant cases or severe flare ups are antibiotics needed. Antibiotic
ointments work best as they can be applied to the lashes but occasionally
oral antibiotics are needed to treat the eyelid glands. Rarely a steroid/antibiotic
combination ointment can be used to kill the bacteria and provide relief
of bothersome symptoms.
Separating these three common forms of blepharitis is sometimes
very difficult as they frequently appear together. The important thing
to remember is that all forms of blepharitis can be treated with a brief
warm compress and lid scrubs (scrubbing the eyelashes and eyelid margins)
every night with warm water or dilute baby shampoo. The problem is chronic
and many patients unfortunately stop their lid scrubs when they feel better
only to find they will flare up in a few days. If you have blepharitis,
remember, lid scrubs every night will lead to greater comfort on
a daily basis.
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