New York Eye and Ear Infirmary
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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 Retinal Anatomy

Normal Fovea OCT Image

Macular Holes

Macular Holes (before and after successful and unsuccessful surgical repair)
Epiretinal membrane
Posterior vitereous detachment

Fluid Accumulation within the Retina

Central serous chorioretinopathy
Retinal pigment epithelial detachment
Cystoid macular edema
Retinoschisis
Diabetic retinopathy

Disorders of the Optic Nerve

Focal lamina cribrosa defect
Retinoschisis in glaucoma

Other Images

Hisptopathological correlation
Choroidal Nevus

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