What is Optical Coherence Tomography?
Optical coherence tomography, or OCT for short, is a diagnostic imaging test that uses light waves to take picture of your retina’s cross-section. Using an OCT test allows for the doctors at Marano Eye Care to see each layer of the retina in order to map and measure it’s thickness. These measurements are used to diagnose and provide treatment guidance for conditions like glaucoma, macular degeneration, and diabetic eye disease.
How to Prepare for an OCT
To prepare for an optical coherence tomography, the patient will first receive dilating eye drops in order to widen the pupil and make examination of the retina easier. The patient will be seated before a OCT machine and place their head into a support to keep it still during the test. The equipment scans the eye without making any contact with the eye, and takes about 5 to 10 minutes to fully complete the test.
In addition to the previously mentioned conditions that can be diagnosed with the use of optical coherence tomography, the tests can also be used to evaluate disorders of the optic nerve. Changes in the optic nerve’s fibers will be visible in the OCT test’s results.