Diabetes Threatens Eyesight: Doctors Urge Mandatory Six-Month Eye Checks

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Diabetes is often associated with blood sugar monitoring, diet control and medication. What many patients fail to realise is that uncontrolled or fluctuating sugar levels can silently affect vision long before obvious symptoms appear. Ophthalmologists warn that delayed eye screenings remain one of the biggest reasons diabetes-related vision loss goes undetected until it becomes serious.

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Many of the diabetic patients are unaware that increase in blood sugar levels can also lead to blindness. Many patients delay eye screenings assuming that they don't have any early symptoms. Dr Gargi Das, Consultant Ophthalmologist at Vasavi Hospitals says, "Diabetes affects the smallest blood vessels in the body, including those in the eyes, leading to a range of conditions grouped under diabetic eye disease.

These include diabetic retinopathy, fluid build-up in the retina, bleeding inside the eye, growth of abnormal blood vessels and early cataract. All forms of diabetes, whether type 1 or type 2, can damage the eye even when blood sugar appears under control."

Early Eye Checks

According to Dr Das, every newly diagnosed diabetes patient must undergo an eye check immediately. Patients on regular treatment and those with borderline diabetes should follow up every six months if no other issues are detected.Early screening gives diabetologists critical information that may influence medicines and insulin doses.

Diabetic retinopathy is classified as mild, moderate or severe. In the early stages, controlling blood sugar often reverses the damage. In advanced stages, patients may need injections such as anti-VEGF, laser treatment or surgery like vitrectomy. If new blood vessels pull the retina, a retinal detachment can occur.This can cause major vision loss, but recovery is possible if treated in time.

Severe Risks

Dr Das notes that many patients wait until vision drops, eyes water or blurring begins. By then, the disease is usually moderate or severe, making treatment less effective. "High blood sugar level may also lead to cataract formation, often appearing years earlier compared to non-diabetics. Worse, the increase in blood sugar level may also temporarily change eye power. Patients may feel their spectacles are not working, but changing glasses during this period leads to incorrect prescriptions. Stable sugar levels are necessary for accurate vision testing.

Routine Care

Ophthalmologists say almost every diabetic referred for screening shows some degree of eye involvement. Regular examinations can prevent progression and preserve eyesight.Dr Das emphasises that diabetes management itself depends on eye findings, making eye checks an essential part of treatment. She advises patients to follow the diet recommended by their diabetologist or dietitian and keep blood sugar consistently under control. Doctors across the country are now urging diabetics to treat eye screening as mandatory, not optional, to avoid irreversible vision loss.

Vision loss caused by diabetes is largely preventable when detected early. Regular eye screenings, stable blood sugar control and timely medical intervention can make the difference between preserved sight and permanent damage. For diabetics, eye care is not an added precaution, it is a critical part of overall disease management.

Disclaimer: The information provided in this article is for general informational and educational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or a qualified healthcare provider with any questions you may have regarding a medical condition.