Fig. 5From: Changes in choroidal thickness and optic nerve head morphology after filtering surgery: nonpenetrating deep sclerectomy versus trabeculectomyExample of morphological changes in optic nerve head after trabeculectomy. Preoperatively, (a) lamina cribrosa depth was 483 μm and prelaminar tissue thickness was 194 μm. At 1 week, (b) lamina cribrosa depth was 360 μm and prelaminar tissue thickness was 360 μmBack to article page