Diabetic retinopathy is a common eye complication for people with diabetes, affecting millions worldwide. When this condition progresses to an advanced stage called proliferative diabetic retinopathy (PDR), new, abnormal blood vessels begin to grow on the retina’s surface. These fragile blood vessels are prone to leaking or bleeding, which can lead to vision loss. However, the outlook for PDR is much more hopeful with early diagnosis and effective treatments. This article explores the treatments available, offering clear guidance on managing PDR and preserving vision.
Understanding Proliferative Diabetic Retinopathy
In proliferative diabetic retinopathy the eye compensates for the lack of blood flow in the retina by forming new blood vessels, which is known as neovascularization. However, the new ships that are being built are thin and can be easily scratched and as a result they bleed. The subsequent inflammation and edema may exert traction on the retina – a situation that could lead to retinal detachment, a situation that could lead to severe vision loss. Despite what PDR may seem like, knowing what it is is the first step to combating it.
If you want to know more, check out our Diabetic Retinopathy page and get valuable information. You can also consult our Eye hospital in Coimbatore for personalized treatment.
Goals of Treating Proliferative Diabetic Retinopathy
The primary goals in treating PDR are to:
- Prevent the development of new blood vessels that can complicate the condition.
- Minimize inflammation and hemorrhage in the retina in order to avoid getting worse.
- To avoid losing as much vision as possible, the condition must be well controlled.
In most cases, a treatment plan is prescribed according to the individual case of each patient, to maximize the chances of preserving and maintaining vision.
Main Treatments for Proliferative Diabetic Retinopathy
The three main treatments of PDR are different in their approach to handling the condition in the patient. In some cases, a combination of treatments may be used in order to maximize the results to be obtained.
1. Laser Photocoagulation
Laser photocoagulation is one of the most effective treatments for PDR since it has been tested and used for a long time. In this procedure, the ophthalmologist directs a laser light and makes small burn areas on the retina that prevent further growth of the abnormal blood vessels. The “pan-retinal photocoagulation” can also prevent the formation of swelling by sealing the breaks in the damaged vessels. Though laser treatment does not reverse blindness, it has been found to be very helpful in preventing further vision loss.
There may be slight discomfort during the procedure, but the advantages of the treatment usually surpass the discomfort. It is one of the more frequent therapies used in PDR and is still a crucial approach to keeping eyesight.
2. Anti-VEGF Injections
Lucentis injections are against a protein known as VEGF (vascular endothelial growth factor) that encourages blood vessel formation in the eye. These injections work by preventing the formation of new blood vessels or slowing down their growth as a result of VEGF inhibition, thus reducing the chance of bleeding. The injections are normally given to the eye at fixed intervals in the course of treatment. It may sound daunting, but it is a short process and the eye is anesthetized so there is little discomfort.
Anti-VEGF therapy is most effective in patients with PDR that is still in its early stages. In some cases, these injections may be sufficient to control the condition and for others, they may require the injections in combination with laser therapy.
3. Vitrectomy Surgery
In more severe conditions, particularly when there are blood clots, or scar tissues in the eye, vitrectomy surgery may be required. This operation entails the surgical extraction of the vitreous gel which is a clear, jelly like substance found in the eye as well as any scar tissue that may be tugging at the retina. The blood is then cleared to let light pass through the eye lens and help in regaining eye clarity.
Vitrectomy surgery is normally done under local anesthesia and the patient is usually discharged the same day or the following day but needs about a few weeks to recover. For many with severe PDR, it provides an opportunity to gain back some of the vision and prevent additional problems in case other therapies are no longer helpful.
Supporting Treatments for Eye Health
However, these primary treatments require the management of diabetes as the main foundation. The main factor for blood vessels damage in DR is high blood sugar levels, so maintaining blood glucose levels can halt the progression of the disease. Besides the blood sugar, there are benefits in having the blood pressure and cholesterol levels well managed. Here are a few lifestyle tips to support eye health:
- Balanced Diet: It is possible to prevent vision loss by consuming foods containing vitamins A, C and E, omega-3 fatty acids and lutein and zeaxanthin found in green, leafy vegetables, fish and brightly colored fruits.
- Exercise Regularly: Physical activity maintains the blood sugar level and decreases pressure on the eyes.
- No Smoking: Smoking has a negative effect on the blood vessels and therefore, cessation of smoking can have a positive effect on diabetic retinopathy.
Latest Advancements in PDR Treatment
New developments in medical technology have made treatments of PDR to be safer and effective as they progress. Some recent developments include:
- New Anti-VEGF Medications: Some studies are still being conducted in a bid to come up with longer-lasting anti-VEGF drugs so that patients may not have to go through many injections to get the right results.
- Minimally Invasive Surgery Techniques: Surgical technology is constantly improving and vitrectomies are becoming less risky, and patients are healing faster while surgeons are more precise.
- Laser Technology Improvements: The present generation lasers provide better localization, thus sparing the healthy regions of the retina and fewer complications.
These developments are in a way beneficial to patients because they are given more choices and improved prognoses to their eye condition than before.
Preventive Measures to Protect Your Vision
In fact, the best strategy is to avoid PDR in the first place, especially if you have diabetes. Here are some essential preventive steps:
- Schedule Regular Eye Exams: Early detection is key. Diabetic retinopathy can be detected in its early stages, and this is where treatments are most effective during eye examinations.
- Monitor Blood Sugar Levels: Maintenance of specific blood glucose targets helps in preventing or slowing the progression of diabetic retinopathy.
- Manage Health Conditions: Maintaining proper blood pressure and cholesterol levels can help with eye health and prevent the worsening of the condition.
The best way to prevent vision loss and keep complications at bay is to take some preventive measures.
Schedule Your Appointment Today!
Proliferative diabetic retinopathy is also treatable if the problem is diagnosed in its early stages and the patient adheres to good health practices. Anyone with diabetes or those with a family history of getting this disease should make sure to have their eyes checked often. If detected early, it goes a long way and an expert eye check up will ensure no complications are on their way.
Go to The Eye Foundation to book an appointment and find out more about how you can safeguard your sight. Come and visit us today to book your appointment and let us help you on how to achieve better eyesight.
