PMC3661454_01
Stratus OCT cross-sectional image of the fovea revealing an increase in foveal thickness and presence of cystoid spaces.
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Stratus OCT is limited due to poor resolution (Fig. 1). SD-OCT (Spectralis, Heidelberg Engineering, Germany) showed an increased thickness of the fovea and presence of large cystoid spaces in the outer plexiform layer with stretching of the Muller cell processes (Fig. 2).
A) Infrared image of the right of the patient showing cystic spaces at the fovea. B) SD-OCT cross-sectional image of the fovea showing an increased thickening of the fovea. Central subfield thickness (a circular area, 1 mm in diameter centered at fovea) was 500 microns and 0.36 mm3 in volume. C) 3-D image of the volumetric scan showing foveal elevation.. Abbreviations: ONL, outer nuclear layer; OPL, outer plexiform layer; OS, outer segment
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Stratus OCT is limited due to poor resolution (Fig. 1). SD-OCT (Spectralis, Heidelberg Engineering, Germany) showed an increased thickness of the fovea and presence of large cystoid spaces in the outer plexiform layer with stretching of the Muller cell processes (Fig. 2).
A) Infrared image of the right of the patient showing resolution of the edema. B) SD-OCT cross-sectional image of the same area on the fovea, 3 months after treatment, showing disappearance of cystoid spaces and return of foveal contour to normal. CST thickness was 224 microns and volume 0.25 mm3. C) 3-D image of the volumetric scan showing normal foveal contour.
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The patient was diagnosed to have pseudophakic CME and intravitreal 4 mg of intravitreal triamcinolone actetonide (Kenalog, Allergan) was administered. 3 months later, the patient's BCVA was 20/20 and a repeat SD-OCT showed reduction in foveal thickness (CST measurement was 224 microns and volumetric measurement was 0.25 mm3 and return of normal foveal contour (Fig. 3).