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Ophthalmic Images
December 8, 2016

En Face Optical Coherence Tomography of Cystoid Macular Edema

Author Affiliations
  • 1Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
JAMA Ophthalmol. 2016;134(12):e164648. doi:10.1001/jamaophthalmol.2016.4648

The honeycomb pattern of large and small cystoid abnormalities in the segmented en face swept-source optical coherence tomography (SS-OCT) section through the outer plexiform and inner nuclear layers of the retina is depicted in Figure, A. Intraretinal cystoid spaces in the conventional B-scan SS-OCT image are shown in Figure, B. The en face reconstruction demonstrates the exact nature, extent, and anatomical configuration of the pathology. Cystoid macular edema is a common sequela of intraocular inflammation resulting from many causes like intermediate uveitis and cataract surgery. The commercially available SS-OCT imaging technology has an axial resolution as high as 1 µm. Because a very large number of scans (100000 A-scan/s) can be acquired, en face reconstruction is possible with this technology.

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