Metro Eye Care Centers
Age Related Macular Degeneration

What is Age Related Macular Degeneration?

 

Age Related Macular Degeneration (AMD), often referred to as Macular Degeneration, is a deterioration of the macula of the eye.  The macula is the central part of the retina which allows you to see fine details.  The sharp vision provided by the macula allows us to perform activities like reading and driving.   When the macula is not funcitioning properly, as in AMD, patients may experience blurry vision, dark/blind spots, or visual distortions. 

 

Although people with AMD can experience significant central vision loss, AMD does not lead to total blindness.  Even with the most advanced cases of AMD, the peripheral or side vision, is not affected.  Thus, while patients with advanced AMD may have difficulty with fine details, they can often navigate through their homes and in the community. 

 

 

Are There Different Types of AMD?

 

Yes.  There are two classifications of AMD.  Dry or Wet. 

 

Dry Age Related Macular Degeneration is the most common type.  Nearly 90% of patients with AMD have this type.  Dry AMD is caused by aging and thinning of the macular tissue.  Generally, vision loss with Dry AMD is gradual and slow.  While Dry AMD can lead to significant central vision loss, most patients experience mild vision loss. 

Wet Age Related Macular Degeneration occurs in approximately 10% of patients with AMD.  Wet AMD results from abnormal blood vessels beneath the macula that leak fluid or blood into the central vision.  This can lead to more rapid and significant vision loss.  In recent years, a new therapy has significantly improved the visual outcome in patients with Wet AMD when treated early in the course of the disease. 

What causes AMD?



Most often, Age Related Macular Degeneration, occurs as a part of the body's natural aging process.  Macular Degeneration is the leading cause of blindness in Caucasians over the age of 65.  In addition to age, there are several risk factors that influence the likelihood of developing AMD:

    • Family history
    • Light colored skin and eyes
    • Smoking
    • Poor nutrition
    • UV sunlight exposure