OCT Scan
An OCT (Optical Coherence Tomography) eye test is a specialised diagnostic imaging technique used to obtain detailed, cross-sectional images of the internal structures of the eye, particularly the retina and the optic nerve. It provides high-resolution, three-dimensional images that allow our eyecare professionals to assess the health of your eyes and diagnose various eye conditions.
What To Expect During An OCT Scan
Our OCT scan typically includes:
- Preparation: Before the test, your eyes may be dilated with eye drops to ensure a clear view of the retina and optic nerve.
- Machine Setup: You will be seated in front of an OCT machine, which consists of a scanning device that uses near-infrared light waves to capture detailed images of your eye's internal structures.
- Image Capture: The machine scans your eye by directing a beam of light into the eye, which is reflected off the different layers of the retina and other structures. The OCT system measures the time it takes for the reflected light to return, creating high-resolution cross-sectional images of the eye's layers. A series of images are captured for review by the eyecare professional.
- Results: The OCT machine generates real-time, detailed images that your eye care professional can immediately review. These images provide information about the thickness and health of various retinal layers, the condition of the optic nerve, and the presence of any abnormalities.
Diagnosing Eye Conditions
OCT eye tests are especially valuable for diagnosing and monitoring a range of eye conditions, including:
- Macular Degeneration: OCT can detect and monitor changes in the macula, the central part of the retina responsible for sharp vision. It helps in the early diagnosis and management of age-related macular degeneration (AMD).
- Diabetic Retinopathy: OCT can identify signs of diabetic retinopathy, a complication of diabetes that affects the blood vessels in the retina.
- Glaucoma: By assessing the optic nerve head and nerve fiber layer, OCT can aid in the early detection and management of glaucoma.
- Macular Oedema: Swelling or fluid buildup in the macula can be detected and monitored with OCT.
- Other Retinal Conditions: OCT can also be used to diagnose and manage conditions like retinal detachments, vitreomacular traction, and epiretinal membranes.
How to Get an OCT Scan?
OCT is a non-invasive and painless procedure that provides detailed information about the structure and health of your eyes. It is particularly useful for early diagnosis, monitoring, and treatment planning for various eye diseases. Our qualified eyecare professional will determine whether an OCT eye test is necessary based on your specific eye health needs and any symptoms or risk factors you may have.
We recommend that if you are 25 or older, you should get an OCT scan to learn more about your eye health and to detect diseases early, even if you do not wear prescription glasses.