Diabetic Eye Exams

Diabetic Eye Disease: Why Annual Dilated Exams Are Essential for Every Diabetic Patient

Texas has one of the highest rates of diabetes in the United States, and San Antonio in particular has a significant and well-documented burden of Type 2 diabetes in its population. For the many San Antonio residents managing diabetes — whether newly diagnosed or long-term — annual comprehensive dilated eye exams are not optional. They are a medically necessary component of diabetes management that can prevent blindness.

How Diabetes Affects the Eyes

Diabetes affects the blood vessels throughout the body, and the tiny blood vessels that supply the retina are particularly vulnerable to the damage caused by chronically elevated blood sugar. Over time, high glucose levels cause these vessels to weaken, swell, leak fluid or blood into the retina, or — in more advanced disease — trigger the growth of abnormal new blood vessels that are fragile and prone to bleeding.

This process, known as diabetic retinopathy, is the leading cause of vision loss and new blindness among working-age adults in the United States. It affects the majority of diabetic patients to some degree after 20 years of living with the disease, and it can begin developing within the first decade — often silently, without any symptoms the patient can detect.

Beyond retinopathy, diabetes significantly increases the risk of cataracts (which often develop earlier and progress faster in diabetic patients), glaucoma, and a condition called diabetic macular edema, in which fluid accumulates in the macula — the central retina responsible for sharp vision — causing blurred central vision that can impair reading and daily function.

The Critical Importance of Annual Exams When Vision Feels Fine

This is the message that cannot be overstated: diabetic eye disease frequently causes no symptoms in its early and even intermediate stages. Patients with significant retinopathy often report that their vision feels completely normal right up until a sudden hemorrhage or macular swelling causes rapid and dramatic vision change.

By the time a diabetic patient notices blurring, dark spots, or floaters, the disease has typically already progressed to a stage where treatment is more complex and visual recovery less certain. Annual dilated eye exams allow Dr. Hager to detect retinopathy at its earliest stages — when intervention is simplest and outcomes are best — before you are aware that anything is wrong. The American Academy of Ophthalmology, the American Diabetes Association, and the American Academy of Family Physicians all recommend annual dilated eye exams for patients with Type 1 or Type 2 diabetes. Despite this consistent guidance, a significant proportion of diabetic patients do not receive annual eye exams, representing one of the most preventable causes of vision loss in our community.

Treatment Depends on Stage and Type

Mild non-proliferative diabetic retinopathy, when detected early, often requires no immediate treatment beyond optimizing blood sugar, blood pressure, and cholesterol control — the systemic factors that directly drive progression. Dr. Hager monitors these patients closely with regular imaging and examination to detect any progression that warrants intervention.

More advanced retinopathy, diabetic macular edema, or proliferative disease with new vessel growth may require anti-VEGF injection therapy, laser treatment, or surgical referral to a retinal specialist. These decisions are made based on the specific findings, the degree of visual impact, and the patient’s overall health and preferences.

Coordinated Care with Your Primary Care Team

At River City Eye Associates, Dr. Hager works collaboratively with primary care physicians and endocrinologists to ensure that diabetic patients receive integrated care. Findings from eye exams are communicated to the referring provider as appropriate, and systemic risk factors that affect ocular disease progression are part of every diabetic eye care discussion.

If you have Type 1 or Type 2 diabetes and have not had a dilated eye exam within the past year, please call River City Eye Associates at 210-930-2015 to schedule your annual evaluation. Diabetic eye exams are covered by Medicare and most major medical insurance plans.