Eyecare

What is Diabetic Retinopathy: Early Symptoms, Causes, and Prevention of Diabetes – Related Eye Damage

Living with diabetes is not only frequent urination and frequent infections, it can affect every major organ of the body, like nerves, heart, liver, brai,n and eyes along with kidneys and immune system. One of the lesser-known complications of diabetes is diabetic retinopathy and raising awareness about the condition is crucial to prevent serious vision-threatening problems in people suffering from diabetes.


How does Diabetes affect the eyes?

Diabetes causes multiple problems in the eyes :

  • Recurrent styes
  • Dry eyes
  • Cataract
  • Glaucoma
  • Diabetic Retinopathy


What is Diabetic Retinopathy?

Diabetic Retinopathy is the condition where the small blood vessels in the retina of the eye get affected due to high blood sugar levels in the body. Retina is the light sensitive tissue at the back of the eye. It works like the film in a camera. Persistently elevated blood sugar levels in the eye cause the small blood vessels in the retina to swell, leak or even close, resulting in vision problems.


What are the different stages of Diabetic Retinopathy?

There are two main stages of diabetic retinopathy:

  • Non proliferative diabetic retinopathy (NPDR) : Early stage of diabetic retinopathy with milder symptoms in majority cases.
  • Proliferative diabetic retinopathy (PDR) : Advanced stage where abnormal new blood vessels have grown, leading to vision threatening problems in the eye. This stage cab inevitably lead to irreversible blindness without immediate intervention.


What are the earliest symptoms of Diabetic Retinopathy?

Diabetic retinopathy may not cause any noticeable symptoms in the early stages and therefore, frequent periodic retina check-ups are very crucial to detect problems. In some cases, the disease may silently progress to advanced stages, where urgent treatment becomes indispensable to prevent severe vision loss.

Few of the symptoms some patients experience in the early stages include :

  • Blurring or fluctuating vision
  • Dark spots or floaters in the visual field
  • Visual distortion where straight lines appear wavy or letters may look smaller, bigger or distorted


Can Diabetic Retinopathy be reversed?

No, unfortunately, diabetic retinopathy may not be fully reversed once damage occurs. However, there are modern treatment options that can stop or delay the progression of the condition.


What are the modern treatment options currently available?

It is important to note that the treatment options available do not cure the condition, but delay or stop the progression of the condition to prevent further vision loss and recover most of it.

  • Laser treatment (Photocoagulation) : macular laser seals leaking blood vessels and peripheral laser prevents new abnormal vessels from growing and helps to shrink the existing abnormal blood vessels.
  • Anti VEGF injections : Injections that are given to the eye that help to reduce swelling in the retina and stop the growth of abnormal blood vessels.
  • Vitrectomy surgery : In advanced cases of Diabetic retinopathy, abnormal blood vessels can grow and leak blood inside the eye or scar tissue may develop and pull retina causing retinal detachment. Vitrectomy is a surgical procedure done to remove blood or scar tissue from the eye.


Can blurred vision due to diabetes be corrected?

Yes, the blurring caused due to diabetes can be partially or fully corrected with appropriate treatments depending on the cause of the problem.

A temporary or fluctuating blurring of vision can be causes due to dry eyes or transient change in the refractive power of the eye. Correction of abnormal blood sugar levels may correct temporary blindness.

A change of glasses may help if the refractive error has changed permanently or an early cataract has developed.

Significant cataract needs to be operated along with lens implantation.

Medical procedures like laser and surgical procedures like laser or vitrectomy are required if diabetic retinopathy is the cause of vision blurring.


How long does it take to go blind from blindness?

Not everyone with Diabetes goes blind. The risk depend on

  • How long you’ve had diabetes
  • How well the blood sugar has been controlled
  • How early eye disease is detected
  • Presence of co-morbid conditions and other eye disorders.

Diabetic retinopathy well illustrates the importance of the quote - ‘Prevention is better than cure’.


Is it normal to see veins in your eyes?

Visibility of veins in the eye is generally harmless and is usually caused by tiredness, excess eye fatigue, allergies and/or dryness of eyes.

However, if you notice:

  • Constant redness
  • Vision changes or blurred vision
  • Eye pain or headache

It may suggest an underlying condition like diabetic retinopathy that needs evaluation by an eye specialist.


Conclusion

Diabetic retinopathy is treatable if caught early. Prevention is better than cure. Early signs and symptoms like mild blurring of vision should not be ignored and regular eye checkups are mandatory if you have diabetes. While the condition can't be reversed, timely treatment and healthy lifestyle habits can help you preserve your sight.

Early Detection Saves Vision – Schedule Your Retinal Exam Now!