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Age-Related Eye Disease


There are four major age-related eye diseases:

  • Glaucoma
  • Cataract
  • Macular Degeneration
  • Diabetic Retinopathy

These diseases can creep up during your senior years, threatening your vision. People ages 65 and older are at greater risk for these diseases. Dr. Marvelli, a board certified ophthalmologist, can evaluate you for all four of these diseases at any of his three locations, Hurst, Mansfield or Ft. Worth, Texas.

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Glaucoma is a group of optic nerve diseases involving loss of retinal ganglian that can reduce vision without warning or symptoms. With glaucoma the loss of peripheral vision often occurs gradually over a long period of time, and may only be recognized when it is already quite advanced. Once lost, this damaged peripheral vision can never be recovered. Over three million Americans have glaucoma, but only half of them know it. Until a cure is found, medication and surgery can effectively stop or slow the progression of the disease.

Who is a good candidate for glaucoma surgery?

People whose symptoms cannot be controlled with medications or people with closed angle glaucoma may be good candidates for glaucoma surgery.


A cataract is a clouding of the lens in the eye that affects vision. To the patient, it is like looking through a fogged-up window. Most cataracts are the result of aging. By age 80, more than half of all Americans either have a cataract or have had cataract surgery. Visit our Cataract Surgery page for more information

Macular Degeneration

Macular degeneration causes the loss of sharp central vision. It occurs with degeneration of the macula, which is part of the retina. Central vision is necessary to read or drive. Age-related macular degeneration often begins with characteristic yellow deposits in the macula called drusen. Research suggests that large and soft drusen are related to elevated cholesterol deposits. Until recently, no effective treatments were known for wet macular degeneration. However, new drugs, called anti-angiogenics can be injected directly into the vitreous humor of the eye using a small, painless needle, and can cause regression of the abnormal blood vessels and improvement of vision. The injections frequently have to be repeated on a monthly or bi-monthly basis to control the macular degeneration.

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