| Learning effect of standard automated perimetry in healthy individuals. | |
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MedLine Citation:
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PMID: 18797662 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: To evaluate the learning effect in standard automated perimetry using SITA strategy, central 24-2 program, possible associated factors and spatial distribution in individuals with no perimetry experience. METHODS: A total of 55 healthy subjects were submitted to Humphrey perimetry in two different sessions in one day. Reliability and global indices, and threshold sensitivity at each point were compared between the two examinations. The influence of potential factors (age, gender, and educational level) and the spatial distribution were evaluated regarding alterations between these two examinations. RESULTS: The duration of the test was longer in the first session (median, 5.7 min; interquartile range [IQR], 1.7 min) than in the second (median, 5.3; IQR, 1.1 min) (p=0.002). The median (IQR) of false negative errors was 2% (6%) in the first examination and 0% (6%) in the second (p=0.04). The mean (standard deviation) in the mean deviation (MD) global index was -2.31 (1.86) dB in the first examination and -1.73 (1.69) dB in the second (p=0.07). No association was observed between the change in MD and age (p=0.29), gender (p=0.69) and educational level (p=0.27). The changes in threshold sensitivity were greater at the peripheral points than at the central points (p<0.001). CONCLUSION: The threshold sensitivity increased in the second examination compared to the first. No factors were associated with this change. The changes in threshold sensitivity were more evident at the peripheral points. |
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Authors:
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Dinorah Piacentini Engel Castro; Juliana Kawase; Luiz Alberto Soares Melo |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Arquivos brasileiros de oftalmologia Volume: 71 ISSN: 1678-2925 ISO Abbreviation: Arq Bras Oftalmol Publication Date: 2008 Jul-Aug |
Date Detail:
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Created Date: 2008-09-17 Completed Date: 2009-06-25 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0400645 Medline TA: Arq Bras Oftalmol Country: Brazil |
Other Details:
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Languages: eng Pagination: 523-8 Citation Subset: IM |
Affiliation:
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Department of Ophthalmology, Universidade Federal de São Paulo, São Paulo, SP, Brasil. engeltuca@uol.com.br |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Educational Status False Negative Reactions Female Glaucoma / diagnosis* Humans Learning* Male Middle Aged Perimetry / methods* Sensitivity and Specificity Sensory Thresholds Statistics, Nonparametric Time Factors Visual Fields / physiology |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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