Document Detail

Measuring visual acuity in children using preferential looking and sine wave cards.
MedLine Citation:
PMID:  2216324     Owner:  NLM     Status:  MEDLINE    
Preferential looking using square waves is commonly used to measure visual acuity of infants. Since sine-wave gratings have the advantage of presenting only a single spatial frequency, we completed a study to develop and validate a set of acuity cards using sine waves. The subjects were 83 children (mean age = 41.5 months, range = 3 to 69 months). The sine-wave cards were compared with Teller cards. Identical visual acuity was determined in 83% of the cases. Wilcoxon non-parametric analysis provided no evidence to reject the null hypothesis of equal visual acuities between the two methods. We conclude that sine-wave cards may be used to measure the preferential looking acuity of children.
G R Jackson; N S Jessup; B L Kavanaugh; V L Moats; K M Daum; W L Marsh-Tootle; R P Rutstein
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Optometry and vision science : official publication of the American Academy of Optometry     Volume:  67     ISSN:  1040-5488     ISO Abbreviation:  Optom Vis Sci     Publication Date:  1990 Aug 
Date Detail:
Created Date:  1990-11-21     Completed Date:  1990-11-21     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  8904931     Medline TA:  Optom Vis Sci     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  590-4     Citation Subset:  IM    
School of Optometry, Medical Center, University of Alabama, Birmingham.
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MeSH Terms
Child, Preschool
Evaluation Studies as Topic
Reproducibility of Results
Vision Screening / methods
Vision Tests / instrumentation,  methods*
Visual Acuity*
Grant Support

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