Blepharitis
Chat Highlights
November 20, 2002
Norma Devine, Editor
On Wednesday, November 20, 2002,
Dr.
Rick Wilson, a glaucoma specialist at Wills, and the glaucoma
chat group discussed "Blepharitis."
Dr. Rick Wilson: Hello, all.
Moderator: Good evening,
Dr. Wilson. Thank you for joining us to discuss blepharitis. First,
what is blepharitis?
Dr. Rick Wilson: Blepharitis
is a common inflammatory malady of the eyelid or eyelids.
One kind is allergic -- when the lid is exposed to an antigen
the patient is allergic to. Other kinds are inflammatory
and infectious. The latter two kinds are thought to be caused
when the openings of the oil glands, called the meibomian glands,
along the top edge of the bottom lid and the bottom edge of the
top lid, become blocked by sebaceous or oily material or bacteria.
The stagnant oil in the glands often gets infected.
Moderator: Who gets
blepharitis? Is it more prevalent in a glaucoma patient
using eyedrops?
Dr. Rick Wilson: Blepharitis
is most commonly seen in adults. It seems that abnormalities
in oil gland function, and/or a change in the bacterial colonies
that normally live on the skin, contribute to the development
of blepharitis. In my experience, glaucoma patients do not
seem to be more prone to the inflammatory or infectious type of
blepharitis. They are much more likely, however, to be subject
to allergic blepharitis from the glaucoma drops they use.
P: My doctor has recommended
hot compresses and keeping my eyelids and lashes immaculately
clean. I have tried erythromycin ointment and cilia ointment.
The ophthalmologist usually turns back my eyelids and cleans the
undersides. My eyes are somewhat improved, but they are
still itchy, irritated, and sore. I feel I am doomed to
have this irritating disease forever. Do you know of any
research that might give hope to those of us suffering from blepharitis?
Dr. Rick Wilson: For chronic
cases, oral antibiotics may be needed to get to the bacteria in
the bottom of the oil glands along your lids. I don't know
much about the research going on, since it is not in my field.
Moderator: What are
the symptoms of blepharitis?
Dr. Rick Wilson: Usually,
the main symptom is red, inflamed eyelids, especially along the
margins of the lids. Crusting and sticking together of the
eyelids in the morning are common with the infectious type.
All types are often accompanied by irritation of the eyes.
Dry eyes and rosacea, a skin condition, may also accompany blepharitis.
Moderator: What kind
of doctor usually treats blepharitis?
Dr. Rick Wilson: Most general
ophthalmologists treat blepharitis, although severe conditions
may require a cornea and infectious disease subspecialist.
P: My daughter has
tried everything. The latest treatment is a pinch of soda
in water to soak the eyelids. She was wondering if she has
a yeast infection.
Dr. Rick Wilson: I haven't
heard of yeast infection in the eyelid glands, but that doesn't
mean it doesn't happen. I think it would be very unusual.
P: My glaucoma specialist
referred me to an ophthalmologist to treat my blepharitis.
Without exception, every glaucoma specialist I have ever seen
has downplayed the blepharitis and concentrated on my severe glaucoma.
Is it correct to assume that most glaucoma specialists do not
take blepharitis very seriously?
Dr. Rick Wilson: They, like
most subspecialists, concentrate on what they know best.
I think they take blepharitis seriously, but do not concentrate
on it unless you make a point of it.
P: Wouldn't topical
antibiotics work just as well as oral antibiotics?
Dr. Rick Wilson: No, because
they would not be able to travel down the long neck of the oil
gland to the bulb where the oil is made. When that oil becomes
infected, prolonged treatment with oral antibiotics is needed
to eradicate the infection. Most people live with the infection
by keeping their lid margins quite clean and allowing the infected
oil to drain all the time to prevent a backup of oil and a resultant
sty.
P: Which oral antibiotics
are recommended? Doxycycline didn't seem to help me.
Dr. Rick Wilson: Usually,
doxycycline, tetracycline and erythromycin are the antibiotics
used.
P: Can severe blepharitis
cause more damage for glaucoma patients? Can it increase
IOP (intraocular pressure), or harm the optic nerve, corneas,
or retina?
Dr. Rick Wilson: Severe blepharitis
cannot do more damage to the optic nerve. It will not raise
IOP, unless steroids are given as part of the treatment.
The cornea is often affected as a bystander; the retina, never.
P: Could blepharitis
have added to the deterioration of my stem cells?
Dr. Rick Wilson: I'm afraid
I don't have the experience to answer that.
P: Are the glaucoma
eyedrops the cause of blepharitis, or is it the preservative in
the eyedrops?
Dr. Rick Wilson: Both can
cause a mild, chronic allergy, or a rip-roaring allergic blepharitis.
P: Can a person have
dry-eye syndrome and not have blepharitis?
Dr. Rick Wilson: Yes, commonly.
Although dry eyes decrease your eyes' natural resistance to infections.
P: Are those with aniridia
more prone to blepharitis?
Dr. Rick Wilson: No. But
aniridics often have mega problems with their corneas.
P: Does eyelid swelling
usually accompany blepharitis, and can it cause subtle blurriness?
Dr. Rick Wilson: Yes, as
can the build-up of bacterial waste products in the tear film,
and irritative changes to the cornea.
P: Would routinely
washing the eyelids after using the eyedrops help to prevent irritation?
Dr. Rick Wilson: If you had
allergic signs or symptoms of the eyelid, then keeping the drop
off the eyelid could help. Be careful when washing the eyelids
not to get water in the eye, which could dilute the medical properties
of the eye drop.
Moderator: What is
the difference between seborrheic blepharitis and staphylococcus
blepharitis? Which one is the bacterial type? Are
both types treated the same?
Dr. Rick Wilson: Seborrheic
blepharitis is usually caused by dysfunction of the oil gland
in the lid margin. There is an overproduction of oil, and
the oil gets inflamed if the glands become blocked.
Staph (staphylococcus) blepharitis is often a chronic infection
of the oil glands along the lid margin that can be difficult to
cure. Styes and chalazia, along with crusting and scaling
around the eyes, is common. Mild forms are treated with
hot compresses to open the oil glands and help them to drain.
Lid scrubs with a terrycloth washcloth and diluted baby shampoo
help to remove crusts and anything that might block the openings
to the oil glands. If an infection is present, a topical
antibiotic is used. Severe infections require treatment
for two to four weeks or more with oral antibiotics like tetracycline
or doxycycline.
P: Can punctal occlusion
plugs increase the chance of getting either kind of blepharitis?
Dr. Rick Wilson: Not in my
experience.
P: Can wearing contact
lenses for decades cause blepharitis?
Dr. Rick Wilson: I think
contact lens wear can add to the overall irritation of the lids
and cornea. In susceptible people, that can result in changes
in the lid margin.
P: I'm a bit squeamish
about cleaning the eyelid of the eye with a bleb. Any suggestions
for protecting the bleb? And what does an eyelid scrub consist
of?
Dr. Rick Wilson: I would
pull the lid away from the globe and look in a direction to try
to put the bleb out of the way, either way, up under your lid
(probably best) or way inferiorly. A scrub can just be warm
water on a cotton-tipped applicator or a clean washcloth. You
can add diluted baby shampoo, or you can buy commercial scrubs.
P: My husband, who
is a tree pruner, has had blepharitis for decades. Over-the-counter
eyedrops have worked well for him. But will they continue
to work? They stopped working for my daughter.
Dr. Rick Wilson: Are the
eyedrops he is using a lubricant or an anti-allergy drop?
P: Anti-allergy, I
think.
Dr. Rick Wilson: He probably
has a mild allergy that he is exposed to in his work and the drops
do the job. Your daughter may have a different type of blepharitis.
P: Can punctal occlusion
plugs decrease blepharitis by helping with dry eye?
Dr. Rick Wilson: The plugs
will help with the dry eye. The blepharitis is usually more
difficult and will require specific treatment.
Moderator: What is
the difference between anti-allergy eyedrops and lubricating eyedrops?
Dr. Rick Wilson: An anti-allergy
drug may have an antihistamine or mast cell stabilizer in a lubricant-drop
base. A lubricant does not have any medication in it.
P: Contact lenses were
the best way for me to have good vision (acute myopia).
Blepharitis was just a minor problem.
Dr. Rick Wilson: I'm glad,
but wearing contact lenses increases the risk of blepharitis,
so I would be very careful about the contact lens care and hygiene.
P: What's the difference
between a sty and blepharitis?
Dr. Rick Wilson: A sty is
like a tiny boil. One oil gland becomes infected and filled with
pus.
P: Would you recommend
the one-day contact lenses to reduce the risk of blepharitis?
Dr. Rick Wilson: Yes, I think
they are the safest.
Moderator: Thanks
for your time, Dr. Rick.
Dr. Rick Wilson: Good night,
everyone. Have a great Thanksgiving.
End of highlights for November 20, 2002.
On Novebmer 27, Dr. Werner discussed "Inflammation" in the Chat
room. Click here for highlights
of that
meeting.
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