Being one of the leading health conditions worldwide, diabetes affects millions of people every year.
When it comes to seeing complications caused due to diabetes, many people might overlook the serious impact this has on eye health, despite them being aware of common complications.
Diabetic retinopathy is one of the most dangerous eye conditions linked to diabetes, which is a disease that affects the retina and can lead to permanent vision loss if left untreated.
If you’re looking for the best retinal care, you can easily book a consultation with a top-rated retina doctor in Siliguri.
But to make things easy for you, this blog provides an insight into the question, “Why diabetic patients must get regular retina screenings?”
Let’s start by learning more about,
What is a Retina?
The light-sensitive layer of tissue at the back of your eyeball is called the retina.
By capturing focused light and converting it into electrical signals, it works like a film or digital sensor in a camera.
These signals are then sent to the brain to create the images you see.
The retina is not a uniform sheet; it features specialized zones designed for different visual tasks:
- The Fovea:
The fovea is the tiny pit located at the dead center of the macula that contains the highest concentration of cone cells.
This is responsible for maximum visual sharpness and color accuracy.
- The Macula:
This is the small, circular area in the center of the retina that provides sharp, detailed central vision needed for reading and recognizing faces.
- The Peripheral Retina:
The expansive area surrounding the macula that provides side or corner-of-the-eye vision and detects movement is called the peripheral retina.
- Optic Disc:
The Optic Disc is the spot where nerve fibers bundle together to exit the eye as the optic nerve is called the optic disk.
It lacks light-sensitive cells, creating a natural blind spot.
Explaining further is
Why does diabetes affect your retina?
When chronic blood sugar directly damages the lining of the tiny, delicate blood vessels supplying the back of your eyes, this is how diabetes affects your retina.
Because the retina relies on a constant, uninterrupted supply of oxygen and nutrients to convert light into visual signals.
And any disruption to these blood vessels may compromise your sight.
High blood sugar triggers this damage through a sequence of biological events.
1. Diabetes Weakens Blood Vessels of the Eye
There can be damage to the inner walls of your retinal capillaries due to persistent high blood sugar, which can trigger chemical changes and cellular inflammation.
These vessel walls weaken and form tiny, balloon-like bulges called microaneurysms.
These fragile bulges routinely leak blood and fatty fluids directly into the surrounding retinal tissue. This is how diabetes weakens the blood vessels.
2. It Causes Retinal Swelling
The layers of the retina begin to swell as fluids leak from the damaged vessels.
If this swelling occurs in the macula, which is the hyper-sensitive center part of the retina responsible for sharp, straight-ahead vision.
This can cause a condition called macular edema, which severely blurs your central vision.
This is how diabetes causes retina swelling.
3. It leads to Blocked Circulation
The chronic inflammation causes the damaged blood vessels to collapse, clog, and close off entirely, over time.
4. Fragile New Vessel Growth
To grow new blood vessels, in a desperate attempt to rescue the oxygen-deprived tissue, the retina releases chemical signals, such as VEGF.
However, these new vessels are highly unstable, structurally flawed, and incredibly fragile.
Leaking large amounts of blood into the center of the eye and forming scar tissue that can pull the retina completely away from the back of the eye, they break easily.
Explaining further isthe main question of this blog, which is,
Why Diabetic Patients Must Get Regular Retina Screening?
Diabetic patients must get regular retina screenings because sometimes, it causes diabetic retinopathy can lead to permanent blindness.
Regular retina screening is mandatory because high blood sugar silently damages the blood vessels in your eyes, which can further lead to permanent blindness.
This damage takes place slowly and without pain, meaning you can lose your vision without ever noticing a problem until it is too late.
The Hidden Danger of Diabetes Affecting Your Eyes
- No signs of warning:
The early stages do not change your vision or cause any pain. It is only the slow process of causing permanent blindness in your eyes.
- Leaking of blood vessels:
Excess sugar blocks the tiny vessels in your eye, making them swell and leak fluid, which is a serious cause of blindness.
- Leading to Permanent damage:
Fragile new vessels grow and break, causing severe bleeding or retinal detachment over time.
Why Does Screening Help?
- It catches problems early:
Early screenings of your eyes can help identify issues or problems with your eyes. This helps doctors treat early damage with lasers or injections before your vision worsens.
- Screenings protect your vision:
Early treatment can prevent up to 95% of vision loss caused by diabetes. This is a major way to protect the eyes of patients who have diabetes.
- Checks Your Overall Health:
The blood vessels in your eyes show how diabetes might be affecting your kidneys and heart. Therefore, the early screening of your eyes for diabetes is very important.
- Helps in finding other eye diseases:
These exams also check for cataracts and glaucoma, which are common in diabetic patients.
How Often Should You Get Checked
- Type 1 Diabetes:
For patients with type I Diabetes, you should schedule your first exam within 5 years of your diagnosis.
- Type 2 Diabetes:
For people with type II Diabetes, you should schedule your first exam immediately after your diagnosis.
- Your Follow-up routine:
Apart from diabetes, you should get checked once every year if your eyes are healthy, or more often if your doctor finds damage.
This will help make sure that your eyes are in the right condition and help detect any disease early.
This will also make sure that your eyes are well-treated before they suffer from any disease.
Conclusion
The major body organs that this condition affects are the heart, kidneys, blood vessels, and brain.
And the most important one of all these is the eyes. Acting as the projector of the human body, the eyes are a major part of your sensory organs that are severely affected by diabetes.
Therefore, it isvery important to get your eyes checked up routinely, especially if you have diabetes.
If you’re looking for retina doctors in Siliguri, Dr. Sangeeta D. Goswami is a leading name when it comes to advanced eye care in Siliguri.
At her clinic, she uses advanced diagnostic technology and high-level precision, which helps in delivering eye care and eye treatment.
In addition, she has high-level expertise in vitreoretinal procedures and uses a patient-focused approach for accurate diagnosis, safe treatment, and long-term outcomes.
Consult the best eye or retinal doctor near you to take proper care of your eyes.
