Optical Coherence Tomography (OCT) is a new imaging technique that provides unprecedented high resolution and cross-sectional images of the eye. The OCT scan allows microstructures of the eye to be imaged and shows different colour coded layers of the retina. It is particularly useful in the diagnosis and management of the eye conditions such as age-related Macular Degeneration, diabetic macular oedema, macula hole, epiretinal membrane, vitreo-macular traction syndrome and glaucoma. It has also become a gold standard in monitoring the efficacy of intracitreal anti-VEGF injections (Avastin or Lucentis) for age-related macular degeneration and tailoring treatment regime.
An OCT scan is very quick to perform and it is completely painless and non-invasive. Results are available instantaneously and it is a great way for patients to gain a better understanding of their eye condition.