Optical Coherence Tomography (OCT) is a non-invasive, high-resolution imaging technology that uses near-infrared light to generate detailed cross-sectional images of ocular tissue. Widely regarded as one of the most significant advances in ophthalmic diagnostics, OCT enables clinicians to visualise and measure individual retinal layers, the optic nerve head, retinal nerve fibre layer (RNFL), and anterior segment structures with microscopic precision — in real time and without contact with the eye. OCT has become an essential diagnostic tool in the management of glaucoma, age-related macular degeneration, diabetic macular oedema, retinal vascular disease, and a broad range of anterior segment conditions.
