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How often do patients need visual field tests?

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Abstract

• Background: This study was undertaken to determine whether the interval between visual field tests affects the ability to detect progres sive glaucomatous field loss. • Methods: One hundred and nineteen retinal locations which were deteriorating significantly by ≥1 dB/year (untreated normal tension glaucoma patients: 6 eyes) were studied. Analysis was repeated using ‘thinned’ visual field tests: one test per year instead of the complete three per year over a period of 4 years. • Results: The ‘thinned’ tests identified only 45.4% of the deteriorating points over the 4-year period. Furthermore, there was a mean delay of 1.10 years in detection (P<0.01). • Conclusions: Less frequent visual field testing detects fewer progressing locations and detects them later.

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Viswanathan, A.C., Hitchings, R.A. & Fitzke, F.W. How often do patients need visual field tests?. Graefe's Arch Clin Exp Ophthalmol 235, 563–568 (1997). https://doi.org/10.1007/BF00947085

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  • DOI: https://doi.org/10.1007/BF00947085

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