Refractive blur affects judgement of pedestrian walking direction at night.
Joanne M WoodChiau-Ni ChiuGie Hee KimJenny LeHyun Jung LeeTien NguyenAlexander A BlackPublished in: Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) (2021)
Findings highlight that even small amounts of blur (+0.50DS), that do not reduce visual acuity below the legal driving limits, reduce the ability to accurately judge pedestrian walking direction at night. Retro-reflective clothing in a biomotion configuration facilitated the highest accuracy and confidence in judgment of pedestrian walking direction, for both thin and thick strips compared to vest, for all blur levels.