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A Mayo Clinic Health System educational report explains that diabetic retinopathy can damage the retina before symptoms appear and may lead to permanent vision loss. It recommends regular eye screening for people with diabetes and prompt medical attention for vision changes; care and treatment depend on clinical evaluation.
Mayo Clinic Health System ophthalmologist Wayne Wu has outlined how diabetes can damage the retina, often before a person notices vision changes, and why routine eye screening matters. His educational report says early detection and management by an eye specialist can slow or halt progression, while advanced disease can cause rapid, permanent vision loss.
Diabetic retinopathy develops when diabetes damages blood vessels in the retina, the light-sensitive tissue at the back of the eye. According to Wu’s report, it can affect people with Type 1 or Type 2 diabetes; it may also develop during pregnancy in people diagnosed with gestational diabetes. People who had diabetes before pregnancy may face increased risk, and their clinician may recommend additional eye exams during pregnancy.
The condition can progress without noticeable symptoms, and signs often do not appear until it is moderate or advanced. The report says annual eye screening is part of routine care for people with diabetes. It describes FDA-approved artificial-intelligence screening systems that take a photograph of the retina to look for early signs. If screening detects possible retinopathy, the care team can refer the patient to a retinal specialist or ophthalmologist for further evaluation and management.
Wu says management includes controlling blood glucose, blood pressure and cholesterol, as well as stopping smoking. He advises people to contact their health care team promptly about symptoms including blurred or double vision, difficulty reading or seeing at night, eye pain, flashes, halos, or a sudden increase in spots or floaters. These symptoms can have other causes, too, so the report does not treat them as a diagnosis.
Why Early Retina Screening Matters
Because retinal damage may begin before a person notices a problem, waiting for symptoms can mean missing an opportunity for earlier assessment. Routine screening gives clinicians a way to look for changes before vision is affected, while specialist follow-up can determine whether treatment or closer monitoring is needed.
The report cites estimates that diabetic retinopathy is the leading cause of vision loss worldwide among people ages 25 to 74. It also projects that by 2030, 191 million people globally will have the condition and 56.3 million people with diabetes will have vision-threatening retinopathy. These are projections presented in the source, not counts of current cases. The potential for lasting vision loss makes eye care part of diabetes management, not just a response to obvious symptoms.
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How Diabetes Affects Retinal Blood Vessels
Diabetes affects how the body regulates and uses sugar and can involve multiple organs, including blood vessels and nerves. In the eye, damage to the retina’s blood vessels can gradually impair the tissue needed for vision. The report notes that retinopathy has multiple stages and may remain unnoticed while damage progresses.
Wu’s comments appeared in a Mayo Clinic Q&A distributed by Tribune Content Agency and republished by Seniors Guide. The item is educational material, not an individual examination or treatment plan; it says it does not replace regular medical care. It focuses on screening, risk reduction and seeking evaluation rather than detailing specific procedures for advanced disease.
““Prevention remains the best approach for diabetic retinopathy.””
— Wayne Wu, M.D., Ph.D., ophthalmology, Mayo Clinic Health System
What Screening Can—and Cannot—Show
The report does not specify which screening device or examination is appropriate for each patient, nor does it provide individualized screening schedules beyond describing annual screening as part of routine care. A positive AI-assisted screening result is a reason for further specialist evaluation; the article does not say that the photograph alone establishes a diagnosis or determines treatment.
It also does not detail treatment options for different stages, expected outcomes, or how an individual’s risks vary. Symptoms such as floaters, blurred vision or eye pain can have causes other than retinopathy, and the report says they may also relate to prescription changes or other eye conditions. A clinician must assess the cause.
When to Seek an Eye Evaluation
People with diabetes should discuss regular eye screening with their primary care clinician and follow referrals for a retinal or ophthalmology specialist when screening identifies a concern. The report recommends contacting a health care professional promptly for new or worsening vision symptoms, even if a recent annual exam found no problem.
For pregnant people with diabetes, the next step is to ask their health care team whether additional eye examinations are appropriate during pregnancy. Decisions about monitoring or treatment should be made with qualified clinicians familiar with the patient’s eye findings and overall health.
Key Questions
What is diabetic retinopathy?
It is damage to the retina’s blood vessels associated with diabetes. The condition can progress through stages and may affect vision.
Can diabetic retinopathy develop without symptoms?
Yes. The Mayo Clinic report says damage can occur before symptoms appear, and noticeable symptoms often do not emerge until the condition is moderate or advanced.
How is diabetic retinopathy screened?
Routine screening may include a photograph of the retina. The report says some FDA-approved AI-assisted systems analyze these images for signs of retinopathy; a concerning result may lead to specialist evaluation.
Which symptoms should prompt a call to a clinician?
Contact a health care professional about changes such as blurred or double vision, trouble reading or seeing at night, eye pain, flashes, halos, or a sudden appearance of spots or floaters. These symptoms do not by themselves confirm retinopathy.
Can lifestyle and diabetes management prevent vision loss?
Wu’s report says controlling blood glucose, blood pressure and cholesterol, and stopping smoking, can reduce risk. It also says early detection and specialist management may slow or halt progression; individual care should be discussed with a qualified clinician.
Source: seniorsguide.com
