How Does DNA Testing Ensure I’m a Good Candidate for LASIK?

LASIK Custom Vision is pleased to announce that Avellino DNA testing is now available for anyone interested in LASIK in the Bay Area.

Staying true to our commitment of only the safest, most accurate LASIK possible, Simon 20/20 Vision Center has partnered with Avellino Lab USA, to offer all our LASIK patients the only commercially available genetic test worldwide for granular corneal dystrophy (GCD).  GCD is a rare hereditary disease that can eventually lead to complete loss of vision.  Patients with GCD are not recommended as good LASIK candidates.

Why Is the Avellino LASIK DNA Test Important?

LASIK is both the safest and most successful elective procedure in the history of medicine.  But thanks to the Avellino  LASIK DNA screening test it’s become even safer.  This test provides an added level of safety by notifying Dr. Simon of those patients who should not have LASIK due to a hereditary condition known as Avellino corneal dystrophy, or granular corneal dystrophy type II. Due to this condition, 1 in 870 people are not suitable candidates for LASIK.

This is the first time in the nearly 20-year history of LASIK that we can completely eliminate this potential issue for our patients. 

Easy. Safe. Simple.

AvellinoDNATestThe Avellino LASIK DNA screening is simple and fast. The test involves a quick mouth swab which is analyzed to determine whether a person carries the GCD1 or the GCD2 gene mutation.  The sample is  sent to Avellino Lab USA, and, within 24 to 48 hours, the results are provided to Dr. Simon to share with our patients.  Should your results come back negative, then you will be deemed a great LASIK candidate and can pursue your procedure with confidence.  Those identified as positive for the genetic mutation will be deemed non-candidates, and encouraged to take protective measures, such as wearing appropriate protective lenses to help postpone any progression of GCD symptoms.

More About GCD

Granular corneal dystrophy, or GCD, is an inherited condition that could decrease vision by causing cloudy areas to appear on the surface of the eye. This surface tissue, or the cornea, is normally a clear window through which we see the world.

In patients with GCD, a certain protein that is a main part of the LASIK healing process behaves differently than in patients who don’t have this deficiency.  In good LASIK candidates, this particular protein appears on the cornea early in the healing process and then disappears completely after it has performed its duties. However, in patients with GCD, this protein continues to build up, and the resulting cloud on the cornea can cause a decrease in the quality of your vision after LASIK. In extreme cases, a significant loss of vision could occur.

The likelihood that any individual carries a predisposition for GCD is about 1 in 1,000.   But DNA testing  is vital, since there’s no permanent cure for this condition once it develops.  It is encouraged that anyone thinking about LASIK undergo a DNA test to rule out this hereditary condition.

Want to learn more?  Schedule your complimentary consultation today with Dr. Simon to learn more about our screening process, including the Avellino LASIK DNA screening,  and discover if you are indeed a great LASIK candidate.

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