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Vision, Eye Care and Diabetes

When you have type 1 or type 2 diabetes, vision and eye care is an important part of your regular health checks.High blood sugar damages the tiny blood vessels in the eyes, resulting in a condition called diabetic retinopathy. High levels of blood glucose can also cause cataracts and glaucoma. This makes it mandatory to go for a full eye exam at least once a year so that any vision problems can be detected in the early stages and treated before it becomes worse.

eye care and diabetes vidya sury

Diabetic retinopathy

This results from the damage to the blood vessels in the retina, the tissue at the back of the eye. This is common and may not pose a threat to your eyesight. But long term high blood sugar can cause proliferative diabetic retinopathy which means that new blood vessels start to grow on the retina, scarring it and causing vision loss.

Another problem is macular edema which causes blurred vision when fluid leaks into the part of the retina that helps you read, drive and recognize fine details. Both retinopathy and macular edema can be prevented by controlling blood sugar, cholesterol and blood pressure.

Diabetes and cataract

Cataracts cloud the eye’s lens causing blurred vision. When it is severe, surgery helps to improve vision.

Diabetes and glaucoma

Glaucoma is a serious eye condition that increases the pressure in the eyes. Diabetics are at double the risk for developing glaucoma. This damages the retina and optic nerve. Often there are no symptoms until there’s vision loss. Glaucoma is usually treated with eye drops to bring down the pressure. When serious, laser treatment or surgery may be required.

Can eye problems be prevented in diabetics?

Yes. Here are some eye care tips to protect your eyesight.

Good blood sugar control

It always boils down to this. Keeping your blood sugar under control helps prevent various problems and eye problems in particular, preventing damage to the tiny blood vessels in the eyes. Managing blood glucose also helps to delay any diabetes-related eye problems. My doctor advises the A1c test at least thrice a year to check the average blood sugar for the three months before the test so that treatment can be adjusted to help keep blood sugar under control. Aim to keep your A1c levels under 7%

Good blood pressure control

When blood pressure is under control, it helps delay or avoid eye disease caused by diabetes. Get your blood pressure checked regularly. Usually, a low-salt diet, maintaining a healthy weight and exercise should help. If this is not enough, your doctor may prescribe medication to control blood pressure. A good goal is 140/80.

Good cholesterol control

Controlling your cholesterol levels helps maintain heart health as well as eye health in diabetes. Cholesterol in the arteries can prevent blood flow to various parts of the body, including the eyes. This can affect the nutrition and oxygen your eyes need. Control your lipids along with your blood sugar levels to prevent the progress of eye problems.

Annual eye exams

A full eye exam once a year where your doctor dilates your eyes with special eye drops can identify any damage to the blood vessels in the eye. If you are pregnant or planning a pregnancy, this is even more important.

Being alert to unusual signs

Watch out for anything unusual with your eyesight so that you can talk to your doctor about treatment right away. If you notice your vision is suddenly blurry, cloudy or you are experiencing double vision, tell your doctor. Other signs to look for are:

  • Floating spots in your vision
  • Pain, pressure or red eyes
  • Difficulty seeing straight lines
  • Problems with seeing out of the corner of your eye
  • Any other changes

Giving up the smoking habit

Consider giving up smoking. Besides a number of other health problems, smoking damages vision and increases your risk for eye problems, especially if you are diabetic.

Protect your eyes from the sun

Wear sunglasses to protect your eyes from the sun’s rays and UV radiation to prevent cataracts when you step outside.

Step away from the computer screen

Take a break from looking at your computer screen every 15 minutes. Some people feel the effect of Computer Vision Syndrome, a bundle of eye problems related to computer use. CVS can result in blurred vision, double vision, dry eyes, strain, fatigue and headaches. If you suffer from dry eye, ask your doctor for eye drops.

Get enough antioxidants in your diet

A diet rich in antioxixants can protect your eyes from macular degeneration and cataracts.

Here is a quick list of resources:

  • Vitamin A: carrots, boiled spinach, turnip greens, kale, parsley, red bell peppers, sweet potatoes, asparagus, green beans, apricots, broccoli
  • Vitamin C: broccoli, bell peppers, kale, cauliflower, strawberries, lemons, papaya, chard, cabbage, spinach, kiwi, snow peas, cantaloupe, oranges, grapefruit, limes, tomatoes, zucchini, pineapples
  • Vitamin E: mustard greens, turnip greens, chard, sunflower seeds, almonds, spinach, olives, tomato, blueberries, broccoli
  • Zinc: beef, lamb, summer squash, asparagus, venison, chard, collard greens, shrimp, broccoli, peas, yogurt, pumpkin seeds
  • Beta carotene: sweet potatoes, carrots, kale, spinach, turnip greens, winter squash, collard greens, cilantro, fresh thyme
  • Lutein and zeaxanthin: kale, spinach, turnip greens, collard greens, romaine lettuce, broccoli, zucchini, garden peas, Brussel sprouts
  • Omega-3 fats: salmon, flax seeds, walnuts, scallops, auliflower, cabbage, halibut, shrimp, cod, tuna, soybeans, tofu

The good news is, as long as you manage your diabetes, you can prevent eye problems and enjoy healthy vision. Take care to follow your diabetes diet, exercise and medication.

Stay healthy!

Day 22 of the A to Z Challenge

V is for Vision and Eye care and Diabetes

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1 comment

Jeremy July 11, 2014 at 4:04 am

Great blog. lots of good information. I believe many take their eye sight for granted until its gone. Annual checkups are very important. Don’t wait for something to be wrong.


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