Optical Coherence Tomography (OCT) is a laser scanning technology that takes a topographical map of the back of your eye. Depending on the area that your Ophthalmologist wishes to concentrate on, the test can look at your macula, optic disc or general retina. An OCT scan can monitor changes in macula degeneration, macula hole, and the nerve fibre layer that is affected in conditions such as glaucoma.

 

  Optical Coherence Tomography (OCT test) can assist in the diagnosis of conditions affecting the back of the eye by using light waves to create a detailed map of underlying retinal structures not observable by any other means. The OCT is a non-contact, non-invasive tool that can lead to earlier confirmation of damage or disease so doctors can provide treatment sooner. The scanner produces high resolution, cross section images of the retina or back of eye. Using this non-invasive scanner, depending on the area that the Ophthalmologist wishes to concentrate on, your doctor can more specifically diagnose and monitor your macula, optic disc, general retina and nerve fibre layers.

  Prior to this test you will have dilating drops instilled. You will therefore be unable to drive after this test so you need to have someone available to take you home. Once your pupils are dilated you will be seated at the OCT machine. Your chin will be placed on a chin rest and your forehead against a support bar to keep your head still during the test. The OCT scanner will not touch your eye and you will simply be required to stay still and keep your eye open while the scan is performed. The detailed images will then be printed and you will see the doctor again for discussion of the results.