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Arq Bras Oftalmol. 2008 Mar-Apr;71(2):242-5.

[Clinical correlation between structural and functional assessment in glaucoma: Armaly cup to disk ratio and Brusini glaucoma staging system].

[Article in Portuguese]

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Setor de Glaucoma da Faculdade de Ciências Médicas da Santa Casa de São Paulo, São Paulo, Brasil.



To evaluate the correlation between Armaly's structural systems with Brusini's functional staging in glaucomatous patients.


Seventy-eight eyes of forty-two patients with primary open-angle glaucoma underwent visual field testing with the Humphrey Field Analyzer II (program SITA 24-2) and optic disc evaluation with the 78D Volk lens by two independent observers. Optic disc was stratified according to cup/disc ratio (C/D), from 0.1 to 1.0. Mean deviation (MD) and pattern standard deviation (PSD) values from each eye were plotted on Brusini's staging system to derive a value for glaucoma severity. Both cup/disc ratio and Brusini's values were plotted on a diagram to assess correlation (Spearman's rho correlation coefficient). Armaly's values were logged in a logarithmic figure and the data plotted on a diagram with Brusini's values for each patient.


Armaly's and Brusini's systems dysplayed a poor correlation (rho=0.340). Both unlogged and logged, Armaly's versus Brusini's plots resulted in a linear and weak correlation.


Despite the weak correlation, Armaly's structural system and Brusini's staging system provided non-independent measures for glaucoma evaluation.

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