Retinal Imaging (Optical Coherence Tomography or Fundus Photography)

What Is Retinal Imaging Used For?

Retinal imaging helps doctors examine the blood vessels, nerves, and structure of your retina. It can identify issues such as swelling, bleeding, or abnormal growths that might not be visible during a regular eye exam. This test is often used to monitor chronic conditions like diabetes, high blood pressure, or retinal diseases.

When Might You Need This Test?

You may need retinal imaging if you have symptoms like sudden vision changes, persistent headaches, or if your doctor suspects conditions like diabetic retinopathy, macular degeneration, or glaucoma. It’s also commonly used as part of routine eye exams for people at higher risk due to age, family history, or other health conditions.

How Is the Test Performed?

During retinal imaging, a specialist uses a specialized camera to take high-resolution images of your retina. You’ll likely lie down with your eyes dilated (using eye drops) to allow the camera to capture clear images. The process is quick and painless, though you may experience temporary blurred vision afterward.

What Preparations Are Needed?

No special preparation is required for retinal imaging. However, you may be asked to remove contact lenses before the procedure. If you’re taking certain medications that cause dilated pupils, your doctor may adjust your timing.