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Summit Medical Group: Thrive - May 2019
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Focus on Healthier Eyes
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Blindness and other visual impairments are expected to rise sharply in coming years as the U.S. population ages—yet we can prevent or treat many of these cases.

The major causes of visual disability among U.S. adults include these diseases:

  • Cataracts—Most common in older adults, this clouding of the eye’s lens can bring blurred vision and oversensitivity to glare from lights, especially when driving at night. Risk factors include diabetes, smoking, high alcohol intake, and exposure to ultraviolet sunlight.
  • Glaucoma—A leading cause of U.S. vision loss, this group of diseases involves progressive damage to the eye’s optic nerve, which transmits visual signals to the brain. The most common form of glaucoma develops slowly and usually without symptoms, but a comprehensive eye exam can detect it.
  • Age-related macular degeneration (AMD)—This disease gradually destroys the sharpness of your central vision. We rely on that part of vision for reading, driving, and seeing objects clearly. AMD harms the macula, the part of the eye that provides sharp central vision. Treatment can slow this vision loss.

Best Steps for Protection

You may be surprised to learn that much of the same advice you hear about preventing heart disease, diabetes, cancer, and lung disease also applies to protecting your vision. Some of the best things you can do to prevent or control disabling eye diseases include the following:

  • Have periodic eye exams. A comprehensive evaluation is vital to early detection of problems that could lead to serious vision loss and blindness if left untreated. This is especially true if you have diabetes. Many eye diseases have no symptoms in their early stages, making eye exams critical.
  • Control your blood sugar if you have diabetes. Very high blood sugar levels increase your risk for diabetic retinopathy. Controlling those levels through diet, exercise, medication, or other means can help you avoid diabetic retinopathy and serious vision loss.
  • Keep blood lipids under control. In those with diabetes, high cholesterol may worsen the risk for diabetic retinopathy.
  • Rein in high blood pressure. Hypertension raises the risk for vision problems and loss from a number of causes. There’s also strong link between higher blood pressure levels and diabetic retinopathy in people with type 2 diabetes.
  • Quit smoking. Smoking is a major cause of heart disease and lung disease—and it has been linked to AMD, cataracts, and diabetic retinopathy.
  • Limit exposure to ultraviolet light. UV light has been linked to increased risk for some kinds of cataracts. Wear sunglasses that offer UV protection and a hat with a brim to block sunlight.
  • Adopt a healthy lifestyle. A healthy diet, regular exercise, and weight control can help prevent or manage diabetes (and its related vision threats) and may reduce your risk for AMD.
Be Proactive

Your doctor can help you determine which risk factors you may need to address. He or she can also help you create a doable plan for managing those risks. Between ages 20 and 29, you should have a complete eye exam at least once and twice between ages 30 and 39. In alignment with The American Academy of Ophthalmology, SMG Ophthalmologist, Monica Khalil, MD, advises patients older than age 65 to have a comprehensive eye exam annually as the incidence of unrecognized ocular disease increases with age.

If you experience any visual changes or pain, are seeing spots or lines, or have dry eyes, itching or burning, you should see an eye doctor. Our ophthalmologists are uniquely qualified to treat many common and uncommon eye diseases.

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