Optical Coherence Tomography (OCT) is a non-invasive imaging technique that uses coherent light to capture high-resolution, cross-sectional images of biological tissues. It is particularly beneficial in medical fields such as ophthalmology, cardiology, and dermatology. The technology leverages the principles of low-coherence interferometry to provide detailed images at the micrometer scale, making it a powerful tool for early diagnosis and monitoring of various conditions.