Diabetic retinopathy is one of the leading causes of vision loss among adults with diabetes. It develops when prolonged high blood sugar damages the small blood vessels of the retina. The most dangerous aspect of this condition is that it often progresses silently, causing significant damage before symptoms appear. This is why early screening for diabetic retinopathy is essential to saving sight.

How Diabetic Retinopathy Develops

High blood sugar weakens retinal blood vessels, causing them to leak fluid or bleed. Over time, the retina may swell or grow abnormal new blood vessels. These fragile vessels can bleed suddenly, leading to severe vision loss or retinal detachment.

There are two main stages:

• Non-proliferative diabetic retinopathy (NPDR) – early stage with vessel leakage and swelling
• Proliferative diabetic retinopathy (PDR) – advanced stage with abnormal vessel growth and high risk of blindness

Early detection can stop or slow progression before serious damage occurs.

Why Early Screening Is So Important

Many people with diabetic retinopathy have no vision symptoms in the early stages. By the time vision becomes blurry, damage may already be advanced. Regular eye screening allows specialists to:

• Detect retinal changes before vision is affected
• Begin treatment at the most effective stage
• Prevent complications such as bleeding or macular edema
• Preserve useful vision for years

Early treatment is far more successful than treating advanced disease.

Who Should Be Screened and How Often

• All people with diabetes should have a yearly comprehensive eye exam
• Patients with existing retinal changes may need screening every 3–6 months
• Pregnant women with diabetes require closer monitoring
• Patients with long-standing or poorly controlled diabetes are at higher risk

Your eye specialist will recommend the best screening schedule based on your condition.

How Screening Is Performed

Screening is painless and may include:

• Dilated retinal examination
• OCT (Optical Coherence Tomography)
• Retinal photography
• Fluorescein angiography when needed

These tests allow precise monitoring of retinal health.

Protecting Your Vision

In addition to regular screening, controlling blood sugar, blood pressure, and cholesterol plays a major role in slowing disease progression.

If you are unsure whether your symptoms require emergency attention, it is safer to call your healthcare provider or eye clinic for advice.

With Pakistan’s internationally trained and most experienced cataract surgeons, corneal transplant surgeons and eye surgeons specializing in every single sub specialty in ophthalmology, The Eye Center – Dr. Mahnaz Naveed Shah & Associates in Karachi provides guidance for both routine and urgent eye care needs. Their team can advise whether you should schedule a screening or seek immediate attention, ensuring safety and comfort. For expert consultation, contact The Eye Center – Dr. Mahnaz Naveed Shah & Associates at 03041119544 to book an appointment.

With a proven track record of excellence in glaucoma and cataract care, Dr. Mahnaz Shah and her team are here to help you protect your vision—with confidence.