What is optical coherence tomography (OCT)?

OCT is a new, non-invasive technology used for imaging the retina, the multi-layered sensory tissue lining the back of the eye. OCT, the first instrument to allow doctors to see cross-sectional images of the retina, is revolutionizing the early detection and treatment of eye conditions such as macular holes, pre-retinal membranes, macular swelling and even optic nerve damage.

Similar to retinal CT scans of internal organs, OCT uses the optical backscattering of light to rapidly scan the eye and describe a pixel representation of the anatomic layers within the retina. Each of these ten important layers can be differentiated and their thickness can be measured. A retinal ophthalmologist, knowing the normal thickness of a healthy retinal layer, can then distinguish a multitude of retinal diseases and conditions.

For certain conditions, such as age-related macular degeneration and cystoid macular edema, the 45 second OCT procedure is able to reduce or eliminate the need for fluorescein angiography for some patients.

OCT of Retinal Hole Click to Enlarge

OCT of Retinal Hole Following Treatment Click to Enlarge

Retinal Disorders

Diabetic Retinopathy
Age-Related Macular Degeneration
Retinal Vein and Artery Occlusions
Macular Hole
Macular Pucker
Retinal Tears and Detachments
What is Fluorescein Angiography?
What is Photodynamic Therapy?
What is ICG Angiography?
What is optical coherence tomography?

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