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Relationship between frequency‐doubling perimetry indices and optic nerve head parameters measured with the Heidelberg retina tomograph 3
Author(s) -
FERRERAS A,
CALVO PEREZ P,
PAJARIN AB,
ABADIA B,
FOGAGNOLO P,
FIGUS M,
PABLO LE
Publication year - 2009
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.2009.232.x
Subject(s) - glaucoma , optic nerve , ophthalmology , perimeter , absolute deviation , visual field , intraocular pressure , standard deviation , medicine , optic disc , optometry , visual field loss , mathematics , statistics , geometry
Purpose To determine the relationship between the indices of frequency‐doubling perimetry (FDT) and the optic disc parameters measured with the Heidelberg Retina Tomograph (HRT) 3 in glaucoma patients. Methods 74 eyes of 74 glaucoma patients were prospective and consecutively selected. All of them had intraocular pressure higher than 21 mmHg, and reproducible glaucomatous visual field loss in standard automated perimetry. FDTs were performed with a Humphrey FDT perimeter using the C‐20‐5 full threshold strategy. Participants underwent imaging of the optic disc with the HRT3. The Kolmogorov Smirnov test was applied to check the data were normally distributed. Pearson correlations were calculated between FDT indices (mean deviation and pattern standard deviation) and global stereometric HRT3 parameters. Results Mild to moderate significant correlations (p<0.05) were observed between the FDT indices and most HRT3 parameters. The strongest correlation was found between the mean deviation of FDT and FSM discriminant function of HRT3 (0.525). Pattern standard deviation had the strongest correlation with rim area (‐0.431). Conclusion Optic nerve head parameters measured with HRT3 showed reasonable agreement with FDT indices in glaucoma patients.