Hyunseok 2007.

Methods	Study design: RCT Study grouping: parallel group, involving 48 eyes from 42 individuals Exclusions after randomisation: not reported Losses to follow‐up: not reported How missing data were handled: not reported Reported power size calculation? no
Participants	Baseline characteristics Blue‐light filtering IOL group Number of participants: number of people (number of eyes): ? (26) Sex (number of women/number of men): not reported Age (mean ± unit of error): not reported Non‐blue‐light filtering IOL group Number of participants: number of people (number of eyes): ? (22) Sex (number of women/number of men): not reported Age (mean ± unit of error): not reported Inclusion criteria: not reported Exclusion criteria: not reported Comparison of study groups at baseline: not reported
Interventions	Intervention characteristics Blue‐light filtering IOL Type of IOL: AcrySof SN60AT (Alcon) Non‐blue‐light filtering IOL Type of IOL: Tecnis ZA9003 (AMO)
Outcomes	Wavefront analysis by iTrace (Tracey technologies), and contrast sensitivity test at three months post‐surgery
Identification	Sponsorship source: Funding sources: not reported Declaration of interest: not reported Country: not reported Setting: not reported Comments: Date study conducted: not reported Trial registration number: not reported Contacting study investigators: study authors contacted for more information about abstract; no additional information provided for review. First author's name: Ahn Hyunseok MD Institution: not reported Email: not reported Address: not reported
Notes	AAO conference abstract
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Judgement comment: not reported how list was generated
Allocation concealment (selection bias)	Unclear risk	Judgement comment: not reported how allocation administered. Study is described as “randomised” but with no further details
Blinding of participants and personnel (performance bias) All outcomes	High risk	Judgement comment: no information provided on masking
Blinding of outcome assessment (detection bias) All outcomes	High risk	Judgement comment: no information provided on masking
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	Judgement comment: follow‐up not reported
Selective reporting (reporting bias)	Unclear risk	Judgement comment: no access to protocol or trials registry entry
Other bias	Unclear risk	Judgement comment: insufficient detail in abstract to judge whether other sources of bias are present