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. 2005 Apr;89(4):425–429. doi: 10.1136/bjo.2004.058032

Table 3.

 Success rate

Target IOP Overall success (with or without meds) Complete success (without meds)
Success rate at 2 years (n = 18)
⩽21 mm Hg 17/18 (94.4%) 12/18 (66.7%)
⩽18 mm Hg 16/18 (88.9%) 11/18 (61.1%)
Success rate at last visit (n = 26)
⩽21 mm Hg 20/26 (76.9%) 17/26 (65.4%)
⩽18 mm Hg 19/26 (73.1%) 16/26 (61.5%)