Flicker Perimetry In Healthy Subjects: Influence Of Age And Gender, Learning Effect And Short-term Fluctuation.

dc.creatorBernardi, Luciana
dc.creatorCosta, Vital P
dc.creatorShiroma, Lineu Oto
dc.date
dc.date2015-11-27T13:10:06Z
dc.date2015-11-27T13:10:06Z
dc.date.accessioned2018-03-29T01:04:49Z
dc.date.available2018-03-29T01:04:49Z
dc.identifierArquivos Brasileiros De Oftalmologia. v. 70, n. 1, p. 91-9
dc.identifier0004-2749
dc.identifier
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/17505726
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/197292
dc.identifier17505726
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1297525
dc.descriptionTo determine the mean critical fusion frequency and the short-term fluctuation, to analyze the influence of age, gender, and the learning effect in healthy subjects undergoing flicker perimetry. Study 1--95 healthy subjects underwent flicker perimetry once in one eye. Mean critical fusion frequency values were compared between genders, and the influence of age was evaluated using linear regression analysis. Study 2--20 healthy subjects underwent flicker perimetry 5 times in one eye. The first 3 sessions were separated by an interval of 1 to 30 days, whereas the last 3 sessions were performed within the same day. The first 3 sessions were used to investigate the presence of a learning effect, whereas the last 3 tests were used to calculate short-term fluctuation. Study 1--Linear regression analysis demonstrated that mean global, foveal, central, and critical fusion frequency per quadrant significantly decreased with age (p<0.05). There were no statistically significant differences in mean critical fusion frequency values between males and females (p>0.05), with the exception of the central area and inferonasal quadrant (p=0.049 and p=0.011, respectively), where the values were lower in females. Study 2--Mean global (p=0.014), central (p=0.008), and peripheral (p=0.03) critical fusion frequency were significantly lower in the first session compared to the second and third sessions. The mean global short-term fluctuation was 5.06 +/-1.13 Hz, the mean interindividual and intraindividual variabilities were 11.2+/-2.8% and 6.4+/-1.5%, respectively. This study suggests that, in healthy subjects, critical fusion frequency decreases with age, that flicker perimetry is associated with a learning effect, and that a moderately high short-term fluctuation is expected.
dc.description70
dc.description91-9
dc.languageeng
dc.relationArquivos Brasileiros De Oftalmologia
dc.relationArq Bras Oftalmol
dc.rightsaberto
dc.rights
dc.sourcePubMed
dc.subjectAdult
dc.subjectAge Factors
dc.subjectAged
dc.subjectFemale
dc.subjectHumans
dc.subjectLearning
dc.subjectMale
dc.subjectMiddle Aged
dc.subjectPredictive Value Of Tests
dc.subjectReference Values
dc.subjectReproducibility Of Results
dc.subjectSensitivity And Specificity
dc.subjectSex Factors
dc.subjectVisual Field Tests
dc.subjectVisual Fields
dc.titleFlicker Perimetry In Healthy Subjects: Influence Of Age And Gender, Learning Effect And Short-term Fluctuation.
dc.typeArtículos de revistas


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