How the RetEval ERG Helps Detect Early Retinal Disease

Early detection is one of the most powerful tools in preserving vision. Many retinal diseases begin silently - causing microscopic changes long before noticeable symptoms like blurred vision or vision loss occur. Advances in diagnostic technology have made it possible to identify these changes sooner than ever, and one of the most valuable tools in this effort is the RetEval® ERG.

What Is an ERG?

ERG stands for electroretinography, a test that measures how well the retina responds to light. The retina contains specialized cells - rods, cones, and inner retinal cells - that convert light into electrical signals sent to the brain. An ERG evaluates the electrical activity of these cells to determine whether they are functioning properly. Unlike imaging tests that show the structure of the retina, ERG testing evaluates function, often detecting problems before physical damage is visible.

What Makes the RetEval ERG Different?

The RetEval ERG system, developed by LKC Technologies, is a modern, portable ERG device designed for comfort, efficiency, and clinical accuracy.

Key advantages include:

• No pupil dilation required in many cases

• Skin electrodes instead of contact lenses, improving comfort

• Quick testing time, often completed in minutes

• Objective results, not dependent on patient responses

These features make the RetEval ERG especially useful for early detection, routine monitoring, and patients who may have difficulty with traditional testing methods.

How RetEval ERG Detects Retinal Disease Early

Many retinal conditions affect function before they cause visible structural changes. The RetEval ERG can detect these early functional abnormalities, allowing for timely intervention.

• Detects Subtle Retinal Dysfunction: The test measures how retinal cells respond to light intensity and timing. Even minor delays or reduced responses can indicate early disease.

• Identifies Risk in Systemic Conditions: Patients with systemic diseases like diabetes or vascular conditions may develop retinal changes gradually. RetEval ERG can reveal early retinal stress or dysfunction, supporting closer monitoring and early treatment.

Conditions That May Benefit From RetEval ERG Testing

RetEval ERG is particularly useful in the evaluation and management of:

• Early diabetic retinal changes

• Retinal ischemia or vascular disorders

• Inherited retinal conditions

• Unexplained visual complaints

• Monitoring progression of known retinal disease

Because it provides objective data, the test is valuable both for diagnosis and for tracking changes over time.

Why Early Detection Matters

Retinal diseases are often progressive, but early detection can significantly improve outcomes. Identifying functional changes early allows your eye doctor to:

• Initiate treatment sooner

• Slow or prevent disease progression

• Preserve vision long-term

• Coordinate care with specialists when needed

Technology like the RetEval ERG adds an important layer of precision to comprehensive eye care.

Schedule Your Retinal Evaluation Today

The RetEval ERG represents a significant advancement in retinal diagnostics by allowing eye doctors to evaluate retinal function quickly, comfortably, and objectively. By detecting functional changes before structural damage or symptoms appear, this technology supports earlier diagnosis, closer monitoring, and more proactive vision care.

Contact Westside Eye Center to schedule your next eye exam with RetEval ERG testing. Visit our office in Vancouver, Washington, or call (360) 694-0760 to book an appointment today.