There has been a lot of controversies about these two terms, “diabetes and cataract.” Some people believe that diabetes cannot cause cataracts. Of course, if you want to look at this deeply, patients who have diabetes should have nothing to do with cataracts. Also, here in Sydney, people with high blood sugar are advised to go for necessary treatment before expanding in their body system. 

You might be wondering how high blood sugar can lead to another ailment in the body. Honestly, there’s a connection within the whole body. Do you know it is possible that a problem in the kidney can lead to another issue in the eyes? Yes! It is possible.

But here, we are going to show you the connections between diabetes and cataracts. Can diabetes lead to a cataract? Or what is the link between these two terms? This article will do justice to the above-listed questions. We will also explain in detail how diabetes can cause cataracts if it is possible. But before we move any further, don’t you think it will be a blessing to you if we briefly discuss the meaning of diabetes and cataracts. Visit to read more about cataracts and eye surgery.

What is diabetes?

Diabetes is a situation whereby your body doesn’t use insulin properly. Remember, insulin is a hormone that allows sugar to enter the cells in your body. Therefore, if there’s a problem in your body with insulin, then glucose can accumulate in your bloodstream. This will result in high blood sugar. Also, diabetes is a disease that occurs when your blood glucose is too high. Blood glucose is a primary source of energy, and it comes from the food you eat. Although poorly controlled diabetes can lead to severe consequences that can cause damage to a wide range of your body organs and tissues. Below here are the symptoms of diabetes;

Diabetes: Study proposes five types, not two
  • Increased thirst. 
  • One will be feeling weak and tired
  • Blurred vision
  • Numbness or tingling in the hands or feet
  • Slow-healing sores or cuts
  • Unplanned weight loss
  • Frequent urination
  • Frequent unexplained infections
  • Dry mouth

With blurred vision among the symptoms of diabetes, there’s more to learn about diabetes and cataracts.

What is a cataract?

A cataract is a dense, cloudy area that forms in the lens of the eye. Initially, cataracts begin when proteins in the eye form clumps that prevent the lens from sending clear images to the retina. Remember, the retina works by converting the light that comes through the lens into signals. It sends the call to the optic nerve, which carries them to the brain. Cataracts are common in older people. According to the National Eye Institute, countless people in the US have cataracts. The only means of overcoming this eye problem is to go for cataract surgery. However, you might be wondering how to know if you have a cataract. Below here are the symptoms of cataracts;

  • Blurry vision. This is a situation whereby things start to look dim or blurry. However, if you notice this sign, you don’t need to buy new glasses. You need to see your eye doctor examine you and tell you the next thing to do. Of course, you might need cataract surgery.
  • Trouble seeing at night. This sign is common among old adults. The moment you notice that nighttime activities like driving become difficult, you are prone to have a cataract. 
  • Seeing colors a faded. The colors of things might change on your site. You may not be able to differentiate between colors again. There’s nothing to be scared about. Cataract surgery is what you need. Cataract surgery will correct everything about your site.
  • sensitivity to glare
  • Halos surrounding lights
  • Double vision
  • frequent changes in prescription glasses

If you’ve seen the above symptoms, then you need to undergo cataract surgery. Then, what is cataract surgery? Cataract surgery is the process of removing the lens of your eyes. Also, cataract surgery is performed by an ophthalmologist. Cataract surgery is mainly committed to treating cataracts.

What are the connections between diabetes and cataract? 

The only connection between diabetes and cataracts is blood sugar. To better understand this link, it is expedient for you to know how blood sugar can affect the body. If blood sugar is left unchecked, it will slowly damage the blood vessels throughout the body. So, this may include tiny blood vessels in the eyes. Therefore, when diabetes affects these blood vessels, there’s a high risk of cataracts and other eye conditions. Also, if there is a high sugar level in the aqueous humor, it will lead to cataracts. And there’s no how one can come out of it except a cataract surgery is done. Don’t forget that aqueous humor is the space between the eyeballs and the lens of the cornea. Therefore, when there is an increase in blood sugar, the lens will swell, resulting in blurry vision. Furthermore, uncontrolled blood sugar can cause enzymes in the lens to convert glucose to a substance called sorbitol. Of course, if there’s too much sorbitol in the lens, it can lead to cloudy vision. 

Cataracts | Johns Hopkins Medicine

How can diabetes lead to cataracts?

Of course, diabetes will lead to cataracts. The eye lens gets oxygen and glucose from the aqueous humor, which is the fluid that fills the front of the eye. Therefore, when one cannot control their glucose levels, the sugar level can rise, causing the lens to swell, which can lead to a cataract. Also, it is expedient for you to know that high blood sugar can lead to problems like blurry vision, cataracts, glaucoma, and retinopathy. Research has shown that diabetes is the primary cause of blindness in adults between twenty to seventy-four.  Click here to read about Weight Training Routines.

Diabetic eye disease: How to spot the signs early | Eyes and Vision | UT  Southwestern Medical Center


If you have high blood sugar, you don’t need to think about consulting your doctor. We’ve seen how diabetes can lead to cataracts if it is not adequately controlled from the above explanations. Therefore, our advice for you is to see the doctor for proper treatment.