Optical coherence tomography (OCT) is a new, noninvasive, noncontact, transpupillary imaging technology which can image retinal structures in vivo with a resolution of 10 to 17 microns. Cross-sectional images of the retina are produced using the optical backscattering of light in a fashion analogous to B- scan ultrasonography. The anatomic layers within the retina can be differentiated and retinal thickness can be measured.
The appearance of a variety of posterior segment pathologies using OCT has been described. These include diabetic retinopathy, macular holes, epiretinal membranes, cystoid macular edema, central serous choroidopathy and optic disc pits.
- Normal Fovea OCT Image
- Macular Holes (before and after successful and unsuccessful surgical repair)
- Epiretinal membrane
- Posterior vitereous detachment
- Central serous chorioretinopathy
- Retinal pigment epithelial detachment
- Cystoid macular edema
- Diabetic retinopathy
- Focal lamina cribrosa defect Retinoschisis in glaucoma
- Hisptopathological correlation Choroidal Nevus