What is an OCT eye scan?
Optical Coherence Tomography (OCT) is an advanced eye scan for people of all ages. Similar to ultrasound, OCT uses light rather than sound waves to illustrate the different layers that make up the back of the eye. Here at Clamp's we have had a Heidelberg Spectralis OCT unit for several years, which we use for tracking changes in, typically, individuals who have risk factors for glaucoma as well as macular degenerative conditions. It can be very helpful in adding extra information when visual fields are unreliable or difficult to interpret. It can also help us in decision-making about the need (or not) to refer an individual into secondary health care in a hospital setting.
The major benefit of this state-of-the-art machine is that it allows your optometrist to see both the back of your eye, and a three dimensional image to look beneath the surface of the regular retinal image. Never before has it been easier to find out the exact state and location of a particular eye condition. Your optometrist can review the images on a PC screen and pin-point areas of concern by digitally peeling the layers back until they define what it is that they have identified as requiring further investigation. OCT imaging can be discussed during your eye test and is particularly useful if there is a family history of certain eye conditions such as glaucoma and ARMD (age-related macular degeneration). Please ask for more details during your eye test if you feel this may be of interest to you.