EYE
ALLERGIES AND HOW TO PREVENT THEM
Allergic reaction in the eye is termed
'Allergic conjunctivitis', this is a non infectious form of conjunctivitis. Allergic
conjunctivitis is the most common type of eye allergy. It occurs when the membrane
covering the eye (the conjunctiva) becomes inflamed, causing itchy, red or watery
eyes.
There are two common types of allergic conjunctivitis: seasonal and perennial.
Seasonal allergic conjunctivitis occurs only during certain seasons.
Perennial allergic conjunctivitis persists throughout the year.
The symptoms
are similar in both.
Causes of eye allergies or Allergic
Conjunctivitis
Exposure to common allergens such as dust, mold, animal
hair, pets and pollens are the commonest causes. When these allergens come in
contact with the surface of the eye, an allergic reaction occurs, releasing a
substance called histamine that causes itching, redness or watering.
What
Are the Symptoms of Allergic Conjunctivitis?
You may or may not have all
the following:-
Redness in the white of the eye or inner eyelid
Increased amount of tears and watering of eyes
Itchy , foreign body
sensation in the eyes
Feeling of dryness in the eyes
Blurred
vision
Swollen or puffy eyelids
How Is
Allergic Conjunctivitis detected?
Our ophthalmologist (eye specialist)
will diagnose this condition if you have any of these persistent symptoms as similar
symptoms also occur with an infectious form of conjunctivitis.
To detect the
"trigger allergen" now blood tests are also available
What
is the treatment?
Allergy-associated conjunctivitis may disappear completely,
either when the allergy is treated with antihistamines, or when the allergen is
removed.
It includes the use of antihistamines, decongestants and anti-inflammatory
agents to treat the cause, for e.g. treat the cold.
We may recommend you use
one or more of the following for your eyes:
Antihistamine eye drops: These reduce redness, swelling and itching by blocking
the actions of histamine, the chemical that causes these symptoms of allergy.
They are available both over-the-counter and by prescription.
Steroid eye drops: We may prescribe steroid eye drops to relieve the symptoms
of conjunctivitis when needed. These must be used only under supervision of the
eye doctor since they can cause elevated pressure inside of the eye, which can
lead to vision damage. These should not be used by you on your own, even if symptoms
recur.
Other ways to reduce seasonal allergens include:
Shutting doors and windows to keep allergens from environment out
Using
the air-conditioning to filter allergens from the air
Staying indoors
when the pollen count is high
Avoiding gardening work if possible
Other
ways to reduce perennial allergic conjunctivitis include:
" Sweeping
and dusting with a face mask, avoiding it if already symptomatic
Vacuuming
carpets weekly
" Keeping pets out of bedrooms
Avoid carpets
as they collect allergens such as dust
What Can I
Do to Relieve Symptoms?
Discontinue contact lenses, if using them.
Use cold compresses on your eyes- cotton wool soaked in cold wa
Try
artificial tears, or lubricating eye drops which help relieve itching
and burning (Note: Other types of eye drops may irritate the eyes and should not
be used.) Do not use the same bottle of drops if opened and unused for over a
month
" The best defense against allergic conjunctivitis is a good offense:
try to avoid substances that trigger your allergies.
Other
Tips:
Don't touch or rub the affected eye(s).
Wash your
hands with soap and warm water before touching your eyes, especially after cleaning
activities or outdoors.
Wash your bed linens; pillowcases regularly
to reduce dust mites- cover the pillow cases with hypoallergenic material like
Tyvek available in many stores.
Avoid wearing eye makeup when
having the allergy.
Don't share eye makeup with anyone else.
Never wear another person's contact lens.
Wear glasses instead of contact
lenses to reduce irritation.
Eye makeup and Allergies
Eye
makeup such as Eye Shadow, Mascara, Eye Liner etc are very popular and are used
nowadays on a daily basis by many women that too for extended hours.
Although,
many products claim to be hypo allergenic, they may give rise to certain eye problems
like allergic conjunctivitis. However, if used properly, make up would generally
not give rise to any problems.
The eye problems occur
in the following situations:
Sharing of Eye Make up
Using
old (expired date) make up
Using make up of poor quality
Using
make up incorrectly
In presence of the above, it could lead to an inflammation
of the eye. While most cases of eye inflammation are not too serious, it is still
important to control the severity of the inflammation as well as the duration
to be sure to avoid any scarring and permanent damage. Because the eyes are such
delicate organs, even a small amount of scar tissue can cause irreversible visual
impairment.
Eye shadows and facial powders can contain potentially irritating
cosmetic-grade lanolin (in creme products), talc, polymethyl methacrylate (used
to hold talc and oil ingredients together in eye shadows), and phenylmercuric
acetate (a mascara preservative) which may be allergic for certain skin types.
Self-care
tips for make up
Using good quality products and replacing them
when old.
If you have a form of conjunctivitis caused by an infection,
wash your hands often and do not touch your eyes.
Do not share eye makeup,
sunglasses, or towels, washcloths, or pillows with others. Follow your doctor's
recommended treatment to clear the infection.
Make a warm or cold compress
by using a clean cloth or cotton swab. Use only boiled or purified water to wet
the cloth and place this on the closed eye. A warm compress typically helps to
reduce discomfort, while a cold compress works well to reduce itchiness and inflammation.
You can use Johnson and Johnson - 'No More Tears Shampoo', a few drops in warm
water to clean eye make up.