Optical Coherence Tomography (OCT) is a non-invasive imaging test that provides detailed cross-sectional images of the retina, helping doctors diagnose and monitor eye conditions like diabetic retinopathy, macular degeneration, and glaucoma. Oct uses light waves to capture high-resolution images, allowing for early detection of changes in the retina and optic nerve, aiding in precise treatment planning. It’s a quick, painless procedure that plays a crucial role in managing and preserving vision.