Concordância e correlação entre a perimetria de freqüência dupla e a perimetria azul-amarelo no glaucoma: sem suporte para seletividade
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Data
2007
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Resumo
Purpose: To test the agreement and correlation between the
frequency doubling technology and the short wavelength
perimetry in glaucoma. Methods: Glaucoma patients were
selected from the Glaucoma Sector of CEROF - Universidade
Federal de Goiás, and then underwent frequency doubling
technology and short wavelength perimetry examinations in
both eyes (if eligible) on the same day in a random sequence.
Pearson's correlation between the global indices (mean
deviation - MD e pattern standard deviation - PSD) and the
agreement between the examinations (Kappa) were obtained.
Results: Forty-three eyes from 26 patients were included in
the study. Comparing the MD (-4.5±4.5 dB for the frequency
doubling technology and -8.0±6.8 dB for the short wavelength
perimetry, p<0.001) and PSD (6.4±2.8 dB for the FDT and
5.8±2.4 dB for SWAP, p=0.1), only MD was statistically
different between the groups. The global indices MD e PSD
were highly correlated between the frequency doubling
technology and short wavelength perimetry (r=0.644, p<0.001
and r=0.586, p<0.001, respectively). There was a high agre-
ement between the examinations (Kappa=0.319, p<0.001).
Conclusion: In the present study, a high correlation between
the global indices (MD and PSD) by the frequency doubling
technology and short wavelength perimetry was found, as
well as a high agreement between the examinations. These
observations indicate either that both cell populations are
similarly affected by glaucomatous damage or that both me-
thods measure activity in the same cell populations.
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Glaucoma/diagnóstico, Estudo comparativo, Perimetria/métodos, Pressão intra-ocular, Glaucoma/diagnosis, Comparative studies, Perimetry/methods, Ocular hypertension
Citação
MAGACHO, Leopoldo et al. Concordância e correlação entre a perimetria de freqüência dupla e a perimetria azul-amarelo no glaucoma: sem suporte para seletividade. Arquivos Brasileiros de Oftalmologia, São Paulo, v. 70, n. 3, p. 509-512, 2007.