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Raising awareness of various issues regarding vision, eye health, and the latest eye care products and technology.


Friday, March 30, 2012

What's your genetic risk?


                                           http://www.teenjury.com/can-a-company-patent-your-genes/



Genetic research is one of the most exciting aspects of health care.  New discoveries are constantly being made that link the individuality of our genes to the general health of our bodies.  Some lead to better forms of treatment, and some are just bad news.  While no discovery, in my opinion, is a bad one, there are certain genetic diseases that simply just don’t have good forms of treatmentHowever, I’m here to talk about an eye condition that has a treament.
There is a very small area in our eyes called the macula that is dedicated to vision involving fine detail.  It is one of the most important areas because it allows us to see the 20/20 line of letters.  Specific changes to that area could lead to something called macular degeneration.  This is a condition that leads to progressive loss of 20/20 vision.  Macular degeneration is the leading cause of blindness among adults over the age of 55.  High blood pressure, a history of smoking, poor diet, sun light exposure to the eye, and having a relative with macular degeneration all put you at a higher risk for developing the disease.  There are different types of macular degeneration, and for simplicity’s sake, I will break them up into two categories; the “not-so-bad form” and the “bad form”.  The difference is the “bad form” leads to severe vision loss, while the “not-so-bad” form usually does not. 


   How a person potentially sees when suffering 
     from a very severe form of macular degeneration .



Our genetic make up is one of the biggest risk factors for this condition.  In fact, it has been argued that if we eliminated all of the genetic risk factors, the disease would not exist in 70% of the population!  Now lets move on to the good news.  Recently, a genetic test has been developed to determine your risk of developing the “bad form” of the disease.  With the use of this test, we can now identify which patients we need to monitor more frequently versus which patients we only have to see on an annual basis.  More frequent monitoring for patients has the potential to identify early changes related to the “bad form” of the disease that should be treated before severe vision loss occurs.  There have been studies that have shown more frequent monitoring and early treatment for higher risk patients lead to a much better visual outcome. 


     A view of your relative risk of getting the "bad form" of macular 
degeneration.  Level 1 represents the lowest amount of risk while Level 5 
would represent the highest. 



If we identify early changes to the area of the macula at EyeWorks, we will schedule you back for an office visit. During the office visit we will take a three dimensional scan of the macula and gather your genetic information in the form of a cheek swab.  This allows us to get an in-depth view of that important part of your eye and further determine your risk level so that we may initiate an appropriate treatment protocol.  Macular degeneration is a serious vision-threatening disease that can be managed.  It is so important to determine your risk level so that we may help preserve your vision during your long and happy life.  Do you know your risk level?   

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