What is OCT?

Optical coherence tomography (OCT) is a non-invasive imaging test. OCT uses light waves to take cross-section pictures of your retina.
With OCT, can be seen each of the retina’s distinctive layers. This allows your ophthalmologist to map and measure their thickness. These measurements help with diagnosis. They also provide treatment guidance for glaucoma and diseases of the retina. These retinal diseases include age-related macular degeneration (AMD) and diabetic macular edema.

What conditions can OCT help to diagnose?

OCT is useful in diagnosing many eye conditions, including:

• macular hole
• macular pucker
• macular edema
• age-related macular degeneration
• glaucoma
• central serous chorioretinopathy
• diabetic retinopathy
• vitreous traction

OCT is often used to evaluate disorders of the optic nerve as well. The OCT exam helps your ophthalmologist see changes to the fibers of the optic nerve. For example, it can detect changes caused by glaucoma.