ABSTRACT
Driver visual screening is based primarily upon measures of acuity (e.g. using Snellen charts). A survey of Canadian provincial and US state licensing requirements reveals that the most common standard is 6/12 (20/40), with a range of 6/6 (20/20) to 6/21 (20/70). In addition, some jurisdictions have a standard for monocular and binocular horizontal visual field, color vision, and diploplia.
