7.3 Ocular Coherence Tomography


Optical coherence tomography (OCT) is a noninvasive imaging technique that provides in situ, real-time cross-sectional images analogous to histologic slices through retinal tissue. The introduction of OCT to ophthalmology revolutionized the management of DME, providing objective documentation of retinal thickening and cystic structures that are invisible on clinical examination. Spectral-domain OCT (SD-OCT) improved on the original technology of time-domain OCT, introducing faster scanning times and higher resolution and allowing the creation of 3-dimensional images of retinal tissue.

Quiz Module 7.3

1. A principal value of OCT imaging for DME lies in its

2. Which of the following is NOT true of OCT?