Monday , January 18 2021

Diabetes and its influence on the health of the eyes


Next Wednesday marks the "Day of Diabetes" and, on this complex disease, it is always good to remember some concepts for the benefit of the community, especially for diabetics and how to lead an orderly life for a better quality of life.

Diabetes is a disease that affects the body's ability to produce or use insulin efficiently to control blood sugar levels. Although glucose is an important source of energy for body cells, excess glucose in the blood can cause many parts of the body, including the heart, kidneys, blood vessels and small blood vessels. of eyes

When the blood vessels in the retina of the eye (the light sensitive tissue that reads the back of the eye) swell or close completely, or if new abnormal blood vessels grow on the surface of the retina, it appears. which is called diabetic retinopathy.

People with a higher risk of developing diabetic retinopathy are those with diabetes or poor blood sugar control, women who are pregnant and people with hypertension, hypertension or both. The risk also increases with the duration of diabetes. For example, a woman develops diabetic retinopathy after living with diabetes for approximately 25 years. In addition, people who are from certain ethnic groups, such as African Americans, Hispanics and Native Americans, are more likely to develop diabetic retinopathy. In fact, a new study confirms that diabetes is a risk factor for loss of vision in a greater percentage among Hispanics.

According to the Centers for Disease Control and Prevention (CDC), 90 percent of vision loss related to diabetes can be avoided, but early detection is the key. People with diabetes should have annual examinations, even before they have signs of loss of vision. However, studies show that 60 percent of diabetics do not perform the tests that their doctors recommend.

Something to remember: Diabetes can cause changes in vision, although it does not have retinopathy. If blood sugar levels change rapidly, it can affect the shape of the lens of the eye, causing blurred vision, which returns to normal after stabilizing the blood sugar level.

Did you know that there is also a connection between diabetes and cataracts? The permanent blurring of vision due to cataracts may also be the result of changes in the crystalline product of excess sugar in the blood. Maintaining good control of your blood sugar helps reduce episodes of temporary blurred vision and prevent turbidity that would require surgery to correct that poor vision.

If you have diabetes, you have a greater risk of developing certain eye diseases, including diabetic retinopathy, glaucoma and cataracts. The good news is that you can preserve your vision and reduce the chances of eye diseases.

Follow these steps now to make sure you keep your vision in the coming years:

1. Obtain a complete exam with your ophthalmologist at least once a year.

In its first stage, diabetic eye disease has no symptoms. A dilated eye exam allows your ophthalmologist to examine more closely the retina and the optic nerve for signs of damage before noticing any change in vision. Regularly, controlling the health of your eyes allows your ophthalmologist to start treatment as soon as possible if signs of illness appear.

2. Control blood sugar

When the blood sugar level is too high, it can affect the shape of the lens of the eye, causing blurred vision, which returns to normal after stabilizing blood sugar. A high level of blood sugar can also damage the blood vessels of the eyes. Keeping good control of your blood sugar helps to avoid these problems.

3. Maintain healthy blood pressure and cholesterol levels

High blood pressure and high cholesterol can cause eyes and loss of vision at a higher risk of disease. Keeping it under control will not only help your eyes but also your overall health.

4. Stop smoking

If you smoke, the risk of diabetic retinopathy and other diabetes related illnesses is greater. Cessation of tobacco will help reduce that risk.

5. Exercise

Exercise is good for the eyes. It is also good for diabetes. Regular exercise can help keep your eyes as healthy as possible when helping to control diabetes.

If you have diabetes, you can maintain a good vision. Be sure to actively control your illness with your ophthalmologist in a way that reduces the risk of aggravating any eye disease.


If you have diabetes, there are many important reasons to follow your doctor's instructions about diet and control of blood sugar. One of those reasons: avoid cataracts. People with diabetes are more likely to develop cataracts compared to non-diabetic patients.

Cataract is a disease in the transparent natural lens of the eye that becomes opaque. Light does not pass through the lens as it should and is not adequately reflected in the retina (the light-sensitive tissue that reads the back of the eye). As a result, the vision becomes nebula, distorted or blurred. In general, cataracts are associated with changes in age in the eye, although other factors, such as medications, surgery, exposure without control) increase the levels of sugar in the aqueous humor and in the lens; These high levels of glucose in the lens cause it to swell, which affects the clarity of vision. The lens also has an enzyme that converts glucose into a substance called sorbitol. When sorbitol accumulates in the lens, it can affect cells and proteins of natural origin, making the lens less transparent and more opaque. This condition eventually leads to the formation of cataracts, causing the world around it to appear blurry, yellowish or discolored, and increase the brightness. If in doubt, from the Ophthalmological Society of Santiago del Estero, it is recommended that you always go to the Oculista for a control exam and to avoid all kinds of diseases.

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