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Spectral-domain OCT (Heidelberg Engineering) imaging. A, Microcystic change visible in the peripapillary region in moderate swelling of the disc (cohort case; blue arrows). B, Transudation of fluid through the retina at presentation. C, Twenty-three days later in 1 case selected from the 19 out 34 cases showing disc change without subsequent retrograde maculopathy (cohort case).
