Your vision might seem perfectly fine, and that’s exactly the problem. Many people living with diabetes have no visual symptoms in the early stages of diabetic retinopathy, even as damage is already occurring inside the eye. By the time blurry vision, floaters, or dark spots appear, the disease may have been progressing for months or longer.
A routine diabetic eye exam is often how this condition gets caught early. For anyone managing diabetes, staying consistent with eye care appointments is essential.
Diabetic retinopathy is one of the leading causes of vision loss in adults, but it doesn’t have to reach that point. Knowing what symptoms to watch for and understanding when to seek care can help you protect your eyesight.
What is diabetic retinopathy, and who is at risk?
Diabetic retinopathy occurs when high blood sugar levels damage the blood vessels that supply the retina, the light-sensitive tissue at the back of the eye.¹ Over time, these vessels can swell, leak, or grow abnormally and interfere with normal vision.
Anyone living with Type 1 or Type 2 diabetes is at risk. Several factors can increase that risk further, including¹:
- Long duration of diabetes diagnosis
- Poorly controlled blood sugar levels
- High blood pressure
- High cholesterol
- Pregnancy in people with pre-existing diabetes
- Smoking
- Being Black, Latino, or Native American, as these groups have a higher prevalence of diabetes and are diagnosed with diabetic retinopathy at higher rates
The longer these risk factors go unmanaged, the greater the likelihood of retinal damage developing or accelerating.
What are the early warning signs of diabetic retinopathy?
Early diabetic retinopathy is often symptom-free. However, as the condition progresses, certain warning signs may begin to appear. Knowing what to look for can prompt you to seek care sooner.
Symptoms of diabetic retinopathy may include:
- Blurry or fluctuating vision
- Floaters or spots in your vision
- Dark or empty areas in your visual field
- Difficulty seeing at night
- Colors appearing faded or washed out
- Straight lines appearing wavy
Can diabetic retinopathy be detected before symptoms appear?
Yes, and this is exactly why regular eye exams are critical. During a comprehensive eye exam, our eye doctors in Avon and New Hartford use specialized equipment to examine the retina in detail. Dilated eye exams and optical coherence tomography (OCT) can detect subtle structural changes in the eye. These are changes you wouldn’t notice on your own, and that wouldn’t show up in a standard vision screening.
Catching diabetic retinopathy early, before significant vision loss occurs, opens the door to treatment options that can slow or even stop its progression. The ability to intervene at an early stage is one of the strongest arguments for consistent, proactive eye care.
How often should people with diabetes have their eyes examined?
Most people with diabetes should have an eye exam at least once a year. However, if diabetic retinopathy has already been detected, we may recommend more frequent monitoring depending on the stage and how quickly the condition is changing.
A medical eye exam for diabetic patients goes beyond checking whether your glasses or contact lenses prescription needs updating. It includes a thorough assessment of the retina, optic nerve, and other internal structures of the eye that are affected by diabetes.
This type of exam is typically covered under medical insurance rather than vision insurance. That’s because it focuses on disease detection and management, not routine vision correction.
What happens if diabetic retinopathy is left untreated?
Without treatment, diabetic retinopathy can progress through four stages:
- Mild nonproliferative diabetic retinopathy
- Moderate nonproliferative diabetic retinopathy
- Severe nonproliferative diabetic retinopathy
- Proliferative diabetic retinopathy
In the proliferative stage, fragile new blood vessels grow across the retina and into the vitreous. This significantly raises the risk of serious bleeding, retinal detachment, and severe vision loss or blindness.
That progression is not inevitable. Several factors work together to slow the disease:
- Keeping blood sugar levels as stable as possible
- Managing blood pressure and cholesterol
- Not smoking
- Maintaining a healthy weight and staying active
- Attending all scheduled eye care appointments
Regular monitoring is what allows any changes to be addressed before they escalate.
What should you do if you notice changes in your vision?
Don’t wait for your next scheduled appointment if something feels off. Any sudden or significant change in vision should be treated as urgent, including:
- A sudden increase in floaters or new flashes of light
- A shadow, curtain, or dark area spreading across your vision
- A rapid or unexplained decline in visual clarity
- Distortion of straight lines that appears suddenly
Contact our eye doctors in Avon and New Hartford right away if you experience any of these symptoms.
If you have diabetes and it has been more than a year since your last comprehensive eye exam, now is a good time to schedule. Your vision is worth protecting, and staying proactive today keeps more options open for the future.
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