title: Changing from Snellen to LogMAR: debate or delay?
abstract: Visual acuity is the most commonly used test to assess visual function. The Snellen chart is the universally accepted tool for testing visual acuity despite its poor reliability and reproducibility. Newer logMAR charts are now available that have negated the disadvantages of the Snellen chart. However, these charts are not being used regularly in daily practice. This article discusses the reasons for the delayed acceptance of the logMAR chart.
authors.affiliation: West Kent Eye Centre, Princess Royal University Hospital, Orpington, Kent BR6 8ND, UK.
authors.forename: Badrul
authors.initials: B
authors.lastname: Hussain
authors.forename: George M
authors.initials: GM
authors.lastname: Saleh
authors.forename: Sobha
authors.initials: S
authors.lastname: Sivaprasad
authors.forename: Christopher J
authors.initials: CJ
authors.lastname: Hammond
mesh_terms: D006801:Humans; D015203:Reproducibility of Results; D014787:Vision Tests / Q000295:instrumentation* / Q000706:statistics & numerical data; D014792:Visual Acuity / Q000502:physiology*