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A and B, UBM showed ciliary block on day 1 after trabeculectomy. C and D, UBM showed that ciliary sulcus diameter (horizontal yellow line) had smaller size than CTR and the ACD deepened slightly after maximum topical medical therapy. B and D showed inferior anterior chamber angle. Yellow arrow showed the acoustic shadow of CTR. ACD = anterior chamber depth, CTR = capsular tension ring, UBM = ultrasonographic biomicroscopy.
