Tabelas para medir acuidade visual com escala logarítmica: Porque usar e como construir

Translated title of the contribution: Logarithmic visual acuity charts: Reasons to use and how to design it

André Messias, Rodrigo Jorge, Antonio Augusto Velascoe Cruz

Research output: Contribution to journalArticle

Abstract

Visual acuity represents the visual angle or the smallest distance between two points that allows their discrimination as separated points. Although it is the most common clinical measurement of visual function, it is often misunderstood, especially due to the variety of charts and different notation systems employed for its quantification. This article reviews some concepts about visual acuity measurement, the main notation systems, type of charts and discuss the advantages of using logarithmic scales.

Translated title of the contributionLogarithmic visual acuity charts: Reasons to use and how to design it
Original languagePortuguese
Pages (from-to)96-100
Number of pages5
JournalArquivos brasileiros de oftalmologia
Volume73
Issue number1
DOIs
StatePublished - Jan 1 2010

Keywords

  • Optometry/instrumentation
  • Visual acuity/classification

ASJC Scopus subject areas

  • Ophthalmology

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