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When Should People with Diabetes Have Their Eyes Checked?
10.07.2026
Eye exam
Diabetes can damage blood vessels for a long time without causing obvious symptoms, and this includes the vessels of the eyes. That is why people with diabetes need regular check-ups with an ophthalmologist, even if they see well and feel no discomfort at all. Many diabetic eye diseases develop gradually, and changes in the retina can go unnoticed until vision has seriously deteriorated. Regular preventive check-ups make it possible to detect a problem at an early stage and start treatment before irreversible complications develop.
Why diabetes is dangerous for your eyesight
High blood glucose gradually damages the walls of the small blood vessels that nourish the retina. As a result, the tissue starts to lack oxygen and nutrients, while the vessels become more fragile and leaky. Over time, this can lead to bleeding, swelling and impaired retinal function.
Many patients do not know that diabetic retinopathy is one of the most common complications of diabetes. In its early stages the disease rarely causes any complaints, but without monitoring the changes keep progressing. That is why diabetic retinopathy is considered one of the main causes of vision loss in people with diabetes.
When you need an eye examination
Your first eye examination is recommended right after you are diagnosed with diabetes, or within the time frame set by your doctor. After that, how often you need check-ups depends on the type of diabetes, how well it is controlled and whether there are any changes in the back of the eye (the fundus).
Even if no diabetic eye disease has been found yet, most patients should see an ophthalmologist at least once a year. If changes are detected, the doctor may recommend more frequent visits.
Modern diagnostics can detect problems before the first complaints appear, which makes further treatment much more effective.
Symptoms you should never ignore
What makes diabetic retinopathy so insidious is that it can develop for a long time with almost no symptoms. That is why you cannot rely on how you feel alone.
Reasons to see a doctor without waiting for your scheduled visit include blurred vision, reduced sharpness, dark spots or floating specks, flashes of light, and difficulty reading or doing your usual work. These symptoms of diabetic retinopathy may indicate that the disease is progressing.
It is important to remember that vision loss in diabetes often appears only once retinal changes have become quite advanced. That is why preventive check-ups matter much more than waiting for the first symptoms.
The stages of diabetic retinopathy
The disease develops gradually. At the initial stage, the changes mainly affect the small vessels of the retina and may not affect the quality of vision at all. That is why patients often do not suspect there is a problem.
There are three main stages of diabetic retinopathy. At the non-proliferative stage, the first changes in the vessels and small haemorrhages appear. The disease may then progress to the pre-proliferative form, in which the blood supply to the retina worsens. The most dangerous is the proliferative stage, when new abnormal vessels form and the risk of bleeding or retinal detachment is high.
The earlier the stage of diabetic retinopathy is identified, the better the chances of preserving vision and avoiding serious complications.
What tests the ophthalmologist performs
During the appointment, the doctor assesses all structures of the eye, paying particular attention to the retina. After the pupil is dilated, the back of the eye is examined, which makes it possible to detect even minimal changes in the vessels.
If needed, optical coherence tomography (OCT), fundus photography and other modern imaging methods are used. These diagnostic tests for retinopathy help determine how much the retina is affected, assess how active the process is and choose the best treatment approach.
Particular attention is paid to patients who have already been diagnosed with diabetic retinopathy, because regular monitoring makes it possible to track changes over time and start treatment promptly.
How to prevent vision loss
You can significantly reduce the risk of complications by keeping your blood sugar under control, monitoring your blood pressure, following your doctor's instructions and not skipping preventive check-ups with your ophthalmologist. It is this comprehensive approach that helps keep the retina healthy and reduces the risk of vision loss.
If retinal changes have already appeared, it is important not to delay treatment. Modern ophthalmology has effective methods that help slow the progression of the disease and preserve vision. That is why prevention includes not only controlling diabetes but also timely diagnosis.
Preventing diabetic retinopathy is just as important for patients who have no complaints yet. Regular examinations make it possible to detect the disease before the first symptoms appear and make treatment much more effective.
Conclusion
Diabetic retinopathy is a complication that can develop unnoticed for a long time. That is why having no complaints does not mean your eyes are safe. Regular check-ups allow changes to be found at an early stage, when the chances of keeping good vision are highest.
It is important to remember that complications of diabetic retinopathy can lead to serious loss of vision, but timely diagnosis and treatment greatly reduce this risk. To prevent vision loss from diabetes, make preventive eye examinations as routine a part of managing your condition as checking your blood sugar or seeing your endocrinologist.
To know exactly what is happening with your eyes, book a comprehensive eye examination — the doctor will check all structures of the eye and explain the results.
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Frequently Asked Questions
Diabetes can damage blood vessels for a long time without causing obvious symptoms, and this includes the vessels of the eyes. That is why people with diabetes need regular check-ups with an ophthalmologist, even if they see well and feel no discomfort at all.
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