PMC3958499_01
Spectral domain optical coherence tomography B-scan images at the initial visit (A), before surgery (B), and after surgery (C).
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A 52-year-old female presented with ERM in her left eye (Figure 1A). After 6 months, her retinal thickening became severe due to proliferating ERM, and her visual acuity dropped to 20/100 (Figure 1B). One month postoperatively, her best-corrected visual acuity was improved to 20/20 (Figure 1C).
(A) Signal curve on the summary display of the IOLMaster  (version 5.4; Carl Zeiss AG, Oberkochen, Germany). (B) Each signal curve of PCI measurements. The circles indicate the highest peaks of the curve, which are used for calculating axial length. The arrows indicate the second highest peaks, which are one of the components of the double peak.. Abbreviation: PCI, partial coherence interferometry.
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The highest peak in the summary display was used for measurement of axial length because the signal curve appeared to be, at a glance, a single peak (Figure 2A).