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.
| Original language | Portuguese |
|---|---|
| Pages (from-to) | 96-100 |
| Number of pages | 5 |
| Journal | Arquivos Brasileiros de Oftalmologia |
| Volume | 73 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2010 |
| Externally published | Yes |
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Keywords
- Optometry/instrumentation
- Visual acuity/classification
ASJC Scopus subject areas
- Ophthalmology
Cite this
Tabelas para medir acuidade visual com escala logarítmica : Porque usar e como construir. / Messias, André; Jorge, Rodrigo; Cruz, Antonio Augusto Velascoe.
In: Arquivos Brasileiros de Oftalmologia, Vol. 73, No. 1, 01.2010, p. 96-100.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Tabelas para medir acuidade visual com escala logarítmica
T2 - Porque usar e como construir
AU - Messias, André
AU - Jorge, Rodrigo
AU - Cruz, Antonio Augusto Velascoe
PY - 2010/1
Y1 - 2010/1
N2 - 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.
AB - 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.
KW - Optometry/instrumentation
KW - Visual acuity/classification
UR - http://www.scopus.com/inward/record.url?scp=77954933648&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77954933648&partnerID=8YFLogxK
U2 - 10.1590/S0004-27492010000100019
DO - 10.1590/S0004-27492010000100019
M3 - Article
VL - 73
SP - 96
EP - 100
JO - Arquivos Brasileiros de Oftalmologia
JF - Arquivos Brasileiros de Oftalmologia
SN - 0004-2749
IS - 1
ER -