Vol. 5 Issue 1 Part A

This article provides an overview of a comprehensive study on Optical Coherence Tomography (OCT) and its advanced variant, OCT Angiography (OCT-A), in the context of diabetic retinopathy. OCT is a non-invasive imaging technique that utilizes low-coherence interferometry for depth-resolved imaging of ocular structures. Since its introduction in 1991, OCT has been a pivotal tool in ophthalmology, allowing detailed visualization of anatomic structures within the eye. OCT-A, a newer iteration, enhances this by using the motion of red blood cells to image blood flow in the retina and choroid without the need for dye injections. This advancement provides significant improvements over traditional methods like fluorescein angiography, offering 3D representations of vasculature and better differentiation of retinal layers. The study emphasizes the clinical relevance of OCT and OCT-A in diagnosing, monitoring, and managing retinal diseases, particularly diabetic retinopathy, showcasing their ability to detect subtle vascular changes and their potential in guiding therapeutic decisions.