Gold standard imaging technique

OPTICAL COHERENCE TOMOGRAPHY

Similar to ultrasound technology, OCT uses light waves to map out the eye for diagnosis and monitoring of various conditions.

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Optical Coherence Tomography

Optical Coherence Tomography (OCT) is a non-invasive method of mapping the retina with the help of light waves.

Ophthalmologists perform this test to see a cross-section, 3D image of the different layers of the retina. This helps them detect problems that can affect the patient’s vision, at times before any other symptoms are present.

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WHO NEEDS IT

Ophthalmologists will do this test on people who are hyper-tensive, diabetic and those who already have or are at risk of glaucoma and retinal diseases such as age-related macular degeneration and diabetic eye disease.

TESTING PROCESS

Optical Coherence Tomography is done on a machine, where the patient rests their chin on a support and focuses on a spot on the screen in front of them while infrared light emitted by the machine maps the retina.

It is possible that eye drops will be administered before the test to dilate the pupil. If this is done, the patient’s eyes will be sensitive to light for a few hours after the test.

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Conditions

There are no special requirements to prepare for the Optical Coherence Tomography procedure.

Effects

Patients may experience sensitivity to light if they are given drops to dilate their pupils.

Risks

There are no known risks associated with OCT.

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