Nagy 2011
| Methods | Parallel‐group RCT | |
| Participants | Number of participants randomised: 105 (53 laser arm, 52 control arm) Number of eyes included: 111 (54 laser arm, 57 control arm) Country: Hungary Average age: 65 years old laser group, 68 years old control group Sex: 72% female laser group, 70% female control group Ethnic group: not described Inclusion criteria: only exclusion criteria are given Exclusion criteria: "Patients with previous ocular surgery, trauma, active ocular disease, poorly dilated pupils, or known zonular weakness were excluded from the study" |
|
| Interventions | Surgical intervention: Laser‐assisted cataract surgery using the LenSx (Alcon Laboratories, Inc.) or manual phacoemulsification using the Accurus phacoemulsification machine (Alcon Laboratories, Inc.) | |
| Outcomes | Circularity and area of capsulotomy and intraocular lens decentration | |
| Notes | Funding source: not reported Declaration of interest: "Drs Nagy and Knorz are consultants to LenSx Lasers Inc. The remaining authors have no proprietary interest in the materials presented herein" Date study conducted: not reported Trial registration number: not reported |
|
| Risk of bias | ||
| Bias | Authors' judgement | Support for judgement |
| Random sequence generation (selection bias) | Low risk | Using computer randomisation, patients and their right/left eyes were randomly selected for femtosecond and manual surgery |
| Allocation concealment (selection bias) | Unclear risk | Using computer randomisation, patients and their right/left eyes were randomly selected for femtosecond and manual surgery |
| Blinding of participants and personnel (performance bias) All outcomes | High risk | Surgeon masking is not feasible for the study methodology described. No masking of participants is described |
| Blinding of outcome assessment (detection bias) All outcomes | High risk | No masking of the outcome assessment is described |
| Incomplete outcome data (attrition bias) All outcomes | Unclear risk | There is no reporting of data attrition to permit judgement |
| Selective reporting (reporting bias) | Unclear risk | No access to study protocol or trials registry entry (trial was not registered) |