![]() Early detection means we can treat diseases like glaucoma, or halt the progress of macular degeneration, before they cause irreversible vision damage. Because the OCT’s map of the eye is three-dimensional, doctors can detect areas of the eye that are abnormal or indicate early damage (for example, if there is a blister of fluid in a layer of the retina), before it has affected the vision of the patient. So what do these colorful pictures mean? A doctor looking at the above image knows what a healthy retina and optic nerve will look like – how thick and/or even it should be, and more. Here are some examples of the information that Optical Coherence Tomography can provide about your eyes: The device never makes any contact with your eyes. From a patient standpoint, this simply means you sit at the machine and place your head as directed, and within minutes, the technician will tell you they have the images they need and you go on to the next portion of your eye exam. Then, a camera-like device directs waves of light, which bounce back with an accurate 3-D picture of your eye structure. For this procedure, we will first apply dilating eye drops for better results. It is safe, non-invasive, and not destructive to tissue. Dan SiapcoĪnother way to think of OCT is that it functions like an ultrasound, except it uses light* – instead of sound waves – to map the shape of the retina and optic nerve. The OCT allows us to diagnose and manage various eye problems like glaucoma and macular degeneration with greater accuracy and sensitivity.” – Dr. Previous to these amazing technologies we were only able to see this view of an eye with tissue sections after the patient was deceased or if the eye was removed. “The OCT is an excellent way to visualize the different layers of the retina and optic nerve in a living eye. Simply put, the OCT is a non-invasive tool that “takes pictures of the back of your eye.” These are found in green leafy vegetables and in yellow fruits.OCT stands for Optical Coherence Tomography. Eat a diet rich in vitamins and minerals, particularly lutein and zeaxanthin, if there is a family history of macula disease.When buying sunglasses make sure they have adequate UV protection. Protect your eyes against damage from UV light.Have regular check-ups including the 3D-OCT scan to monitor any changes.3 ways to help protect and maintain healthy eyes: The OCT can also identify macula disease, including macular degeneration, both wet or dry, and also monitor its progress. All of these structures are extremely helpful in the early diagnosis and progression of glaucoma and other eye disorders. The OCT can create a contour map of the optic nerve, measure the retinal nerve fibre layer thickness, corneal thickness, and anterior chamber angle. The amazing detail allows us to detect abnormalities earlier that are not apparent during a standard eye examination. The unique way the image is formed means for the first time we can actually see below the surface of the retina and view the microscopic layers beneath. This allows us to visualise, in high resolution, the different layers of the retina which is not possible with the normal ‘fundus photo’. The 3D-OCT scans the surface and also BELOW the surface of the retina. ![]() Is the OCT the same as taking a ‘photo’ of the inside of the eye? The patient sits in front of a special type of camera and scans are taken of the structures inside the eye. ![]() It is a very simple, non-invasive and quick test to perform. OCT is an extremely advanced imaging technique for the eyes, giving a three-dimensional, cross-sectional scan of the retina. Optical coherence tomography (OCT) is the latest in imaging technology to help ascertain the health of your eyes and has, until recently, only been available to hospital eye clinics.
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