What can anOCTscan detect

Eye disease in babies: Babies born before the 37th week of pregnancy or at a very low weight are at risk for a condition called retinopathy of prematurity. This happens when abnormal blood vessels grow in the retina.

Diabetic retinopathy: If people with diabetes have excess blood sugar over a long time, it can damage the retina and its blood vessels.

Glaucoma: Glaucoma damages the optic nerve, which connects the eye to the brain. It commonly causes loss of peripheral vision.

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The OHSU Casey Eye Institute is a leader in developing noninvasive imaging to help prevent vision loss. Dr. Huang, our associate director and director of research, is known worldwide for his vision research and inventions. He holds 42 patents and has won top prizes in vision research and biomedical engineering.

Optical coherence tomography helps diagnose, treat and manage the eye diseases that are the leading causes of blindness.

Cornea disease: The cornea is the clear front window of the eye. Damage to the cornea can make vision cloudy or out of focus.

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Optical coherence tomography creates highly precise 3D images. It is most commonly used to image the retina in the back of the eye.

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Diabetic macular edema: In people with diabetes, blood vessels in the retina can become leaky. This causes swelling in a part of the retina called the macula.

Macular degeneration: In age-related macular degeneration, a part of the retina called the macula is damaged, causing loss of central vision.

OCTeye test results

OCT is a common eye care test. It is used when you may be at risk for eye disease or when you already have an eye condition.

OCT scans a beam of light to create 3D images that show the retina’s layers in microscopic detail. OCT can also image the optic nerve, which connects the eye to the brain.

OCT was co-invented by David Huang, an OHSU ophthalmologist and biomedical engineer. It’s now a standard test for finding conditions that can cause vision loss, often before patients notice symptoms. OCT is used in more than 30 million eye procedures each year.

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OCT of the eye is noninvasive, meaning it does not enter or even touch the eye. Standard OCT uses invisible infrared light, so it is more comfortable than imaging that uses visible light.