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Diabetes and Your Eyes: What Every Patient Should Know

Diabetes can damage small blood vessels throughout the body, including those supplying the retina, the light-sensitive tissue inside the back of the eye.

Diabetes and Your Eyes: What Every Patient Should Know
October 27, 2026 News

Why diabetes matters to eyesight

Diabetes can damage small blood vessels throughout the body, including those supplying the retina, the light-sensitive tissue inside the back of the eye. This can lead to diabetic retinopathy. Diabetes can also contribute to diabetic macular edema, cataracts, and other eye concerns. Early stages may not cause noticeable symptoms, making scheduled retinal examinations particularly valuable.

What is diabetic retinopathy?

Over time, blood vessels in the retina may leak or close off. In more advanced disease, abnormal new blood vessels can develop, raising the risk of bleeding and scar-related retinal complications. Diabetic macular edema occurs when fluid accumulates in the central retina, potentially interfering with reading, driving, and other detailed visual tasks.

Why normal vision is not enough

You may be able to read the smallest line on an eye chart and still have changes from diabetes inside the eye. A comprehensive dilated examination—and in some cases retinal photographs or OCT imaging—helps detect disease before it affects your day-to-day vision. The exact examination interval depends on diabetes type, duration, pregnancy status, and previous eye findings.

What can you do between visits?

Working with your diabetes care team to manage blood glucose, blood pressure, and cholesterol can help protect overall health and reduce the risk of complications. Avoid tobacco use and take medications as prescribed. Keep follow-up appointments even when sugars improve, because previous exposure and existing retinal disease may still require monitoring.

What treatments are available?

When diabetic eye disease threatens vision, treatments may include injections of medications that act on vascular endothelial growth factor (anti-VEGF therapy), laser treatment, and, in selected advanced cases, surgery. Treatment decisions reflect the disease pattern, severity, and risk to vision. Some early changes may be monitored without immediate intervention, but monitoring is itself an active plan.

Questions for your next appointment

Ask whether there is any evidence of diabetic retinopathy or macular edema, what stage it is, whether imaging is needed, and when your next examination should occur. Sudden vision changes, a curtain over vision, or many new floaters should prompt urgent evaluation. Partnering with your eye clinician and diabetes team can make sight preservation part of your broader health plan.

Next step: Have questions about your eye health or whether you need a comprehensive examination? Contact Bohonos Eye Care at office@bohonoseyecare.com or 210-729-0544 for general scheduling information. Do not use email for emergencies.

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