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The influence of sampling errors on test-retest variability in perimetry

Maddess, Ted


PURPOSE. To determine whether visual fields measured by standard automated perimetry (SAP) can be distorted by higherspatial-frequency image components and, in particular, whether test-retest variability of SAP fields can be explained by the combination of small scale fixational drift, small stimulus size, and coarse spatial sampling of the visual fields. METHODS. Standard SAP test patterns have points 6° apart. The amplitude spectra of the perimeter's 10-2 fields (model 511 Humphrey Field...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
Source: Investigative Ophthalmology and Visual Science
DOI: 10.1167/iovs.10-6014


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