Sisto 2007.
Methods | Parallel‐group randomised controlled trial, 1 eye per person | |
Participants | Country: Italy Number of participants (eyes): 40 (40) % women: 35% Average age: 61 years (range 36 to 75) Risk of trabeculectomy failure: high Inclusion criteria:
Exclusion criteria: not reported |
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Interventions |
Fornix‐based conjunctival flaps with single surgeon. No releasable sutures or suture lysis employed |
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Outcomes | Success defined as IOP < 21 mmHg at final postoperative visit. Qualified success defined if IOP < 21 mmHg with addition of topical treatment. Failure is uncontrolled IOP equal or above 21 mmHg or vision dropped to no perception of light. Follow‐up: every 3 months in the first year, every 6 months thereafter to maximum 60 months (5 years) |
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Notes | Date study conducted: January 1993 to November 2000 Conflict of interest: Not reported Funding source: Not reported |
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Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | 40 consecutive people with neovascular glaucoma selected. "All eyes had been assigned with a computer generated randomization code." |
Allocation concealment (selection bias) | Unclear risk | No statement made |
Blinding (performance bias and detection bias) All outcomes | Low risk | Surgeon not masked due to technique, but the follow‐up staff were masked on collecting postoperative data |
Incomplete outcome data (attrition bias) All outcomes | Low risk | All participant data included in analysis. However, length of follow‐up was variable and no statement was made regarding the participants lost to follow‐up. |
Selective reporting (reporting bias) | Low risk | Success criteria defined in the methods |
Other bias | Unclear risk | No attempted power calculations |