Alamo Optometry Blog

April 7, 2010

Allergies and Daily Disposable Contact Lenses

Filed under: Contact Lenses, Uncategorized — Tags: , — gkblog @ 9:33 pm

Allergies and Daily Disposable Contact Lenses

As appeared in Alamo Today, April 2010, pg. 24

             Just about this time of year, seasonal allergies are in full swing.  Speaking from a personal point of view, I know dealing with the running nose, sneezing, itchy eyes, and tearing are no fun.  I am already having patients come into the office with complaints similar to my own.  The treatment plan for each person is different, but the drugs, drops, and contact lens modalities we use are similar.

            Most of us take either a prescription or over-the-counter antihistamine.  These usually help alleviate some of the systemic symptoms of runny nose, congestion, etc.  In some patients, it also helps with some of the ocular issues of tearing, itching, and redness.  However, the main side effect of these medications is dryness.  If the eyes are dry, it can actually worsen some of the ocular symptoms because there are fewer tears to wash away the allergens in your eye. 

            For this reason, I also recommend topical drops to help in the fight against allergies.  These drops do not solve the problems, but generally enable the patient to function in the spring months.  There are several types of drops that can be used depending on the severity of the symptoms.  For a mild case, I usually recommend artificial tears and a drop like Patanol.  The tears are used to help lubricate the eye and flush out the allergens that are sitting on your eye causing the itching and redness.  Patanol is used to counteract the effect of the allergens on and around your eye while also helping to prevent further episodes.  For the more advanced case, I recommend a short-term use of a topical steroid, which will calm the eye down quicker than Patanol.  Because of the potential side effects, a drop of this kind should only be used for a relatively short period of time.  I usually instruct my patients to use the drop for about a week, and then use Patanol to keep the allergic reaction at bay.  I believe the use of steroids should only be used when indicated, but is a wise treatment choice in those patients that are really suffering.

            For those contact lens wearers, this is the time of year that leads to decreased wear time, build-up on the lenses, and overall intolerance of wear.  Most patients wear their lenses for less time, and/or dispose of them more often.  For all of my potential contact lens patients including those with allergy issues, I recommend daily disposable contacts.  These lenses are thin, easy to adapt to, do not require any cleaning or solutions, and are always comfortable because you put a fresh lens on every day.  Whether you are a recreational wearer for sports or weekends or wear them every day, these lenses are best for convenience, lens hygiene, and lens comfort.  A new lens leads to better vision and eye health because of no lens build up and a decreased risk for infection.  Even though wearing contact lenses during the spring months might be difficult, having a fresh lens every day provides the possibility of longer and comfortable wear.  Lastly, when combined with a rebate for a year supply and not having to purchase solutions and cases, cost is very similar to a year supply of 2-week or 1-month disposable lenses. 

            Obviously, every patient and situation is different.  Some patients don’t like taking drops and some patients are in love with their current lenses so daily disposables might not be an option.  At your visit, you will be evaluated on your particular signs and symptoms and be given the appropriate treatment plan.  The issues and treatments discussed have generally worked well for my patients in the past.  Most of the time, it will be a combination of these that will work best.

Dr. K. at Alamo Optometry is your hometown eye doctor for outstanding service, vision care, and designer eyewear.  He can be reached at 820-6622 or visit his office at 3201 Danville Blvd., Suite 165 in Alamo.  Visit our website at: www.alamooptometry.com  and become a fan on our Alamo Optometry Facebook page.

April 5, 2009

Allergies

Filed under: Educational — Tags: — admin @ 11:30 pm

(As appeared in Alamo Today, April 2009, pg. 23)

Allergies

Since the rainy season is mostly behind us, we can now all look forward to allergy season. From about mid-March until early summer, I hear several times a day of how patients suffer from systemic allergy symptoms as well as ocular ones. As a fellow allergy sufferer, I can attest that allergies can affect your daily life in many different ways. From sneezing to sinus congestion to coughing, these limit our ability to function during the day, and limit our ability to sleep at night. As for the eyes, they get very red, itchy, and teary to the point where vision and visual comfort is compromised. This leads to decreased production at school and work due to the inability to visually attend to the task at hand. Here I will mainly discuss the ocular effects of allergies, but they are related in how they are treated and managed.
In the United States, allergies affect about 20% of the population, and over half of those have ocular symptoms. Eye allergies mainly involve the conjunctiva, which is the tissue that covers the white surface of the eye and the inner folds of the eyelids. The conjunctiva is a barrier structure that is exposed to the environment and the many different allergens. It is rich in blood vessels and contains more mast cells (histamine-releasing cells) than the lungs. Histamine is the chemical that dilates blood vessels and makes them more permeable; this allows other chemicals in the blood stream to leak out which intensifies itching, redness, and swelling.
For contact lens wearers, the effect of allergies can cause blurry vision, decreased wearing time, and an increase in build-up on the lenses. Therefore, it is important to be mindful of the “surface environment” that contact lenses create. Extended wearing times, infrequent replacement of lenses, and use of potentially irritating contact lens care products can significantly exacerbate symptoms. Proper lens care is an important part of keeping contact lens wearers safe and comfortable.
When allergy symptoms kick in, patients usually visit the local drugstore to pick up a systemic antihistamine for relief. These medications can clear up systemic symptoms like runny noses, sneezing and coughing, but can make the eye condition worse. A major side-effect of antihistamines is that they have a drying effect on the eyes, thereby decreasing tear quality and quantity. Since tears are a major combatant of allergies, this can have a detrimental effect on the eyes. If your tears can’t adequately protect against and flush out the allergens on the eyes, they remain on the eye longer and make matters worse. Also, a dry eye condition can develop which will add burning and stinging to your already itchy eyes.
Firstly, allergy sufferers can help themselves by controlling their ocular environment. Limiting exposure to environmental allergies (keeping the windows closed during the worst seasons, washing your eyes after being outside) can limit the severity of symptoms. In addition, there are many prescription drops that help ease the effects of allergies. Depending on the symptoms and ocular presentation, there are different classes of medications that can help, including lubricating drops. Our ability to visualize the structures of the eye enables us to diagnose allergies and to initiate appropriate therapy. Since there are some other conditions that can mimic the symptoms of allergies, an office visit can help sort out the diagnosis instead of self-prescribing. Keep in mind it is much easier to treat allergies early on before the symptoms become unbearable.

Dr. K. at Alamo Optometry is your hometown eye doctor for outstanding service, vision care, and designer eyewear. He can be reached at 925-820-6622 or visit his office at 3201 Danville Blvd., Suite 165 in Alamo.

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