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. 2011 Jan;59 Suppl(Suppl1):S53-8.
doi: 10.4103/0301-4738.73694.

The role of standard automated perimetry and newer functional methods for glaucoma diagnosis and follow-up

Luciana M Alencar  1 , Felipe A Medeiros
Affiliations

The role of standard automated perimetry and newer functional methods for glaucoma diagnosis and follow-up

Luciana M Alencar et al. Indian J Ophthalmol. 2011 Jan.

Abstract

Automated perimetry has become the mainstream for assessment of functional glaucomatous loss and progressive damage. Recent improvements with the Swedish interactive thresholding algorithm (SITA) strategy and the guided progression analysis (GPA) have further settled standard achromatic perimetry (SAP) as the preferred method for diagnosis and follow-up of functional loss. Although SAP is still considered the gold standard, function-specific perimetry may offer advantages for early diagnosis. Frequency doubling technology (FDT) and short-wavelength automated perimetry (SWAP) have been shown to be helpful, especially when SAP is normal and there is a suspicion of glaucoma. Studies using rarebit perimetry have also shown promising results. Studies have observed that each test identifies a different subset of eyes, and combining the tests may improve sensitivity. Nevertheless, the more sophisticated analyses do not reduce the importance of a correct interpretation of the test results.

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Conflict of interest statement

Conflict of Interest: None declared.

Figures

Figure 1
Figure 1
Example of the printout obtained for a white-on-white test using the SAP 24-2 SITA algorithm. (A) Identification of the patient, the stimulus used, and the test algorithm. (B) Numerical display of the threshold values and its corresponding gray scale map. (C) Total deviation values and corresponding probability plot. (D) Pattern deviation values and corresponding probability plot. (E) Reliability indices. (F) GHT and global indices
Figure 2
Figure 2
Example of the printout obtained with the FDT 24-2 Matrix. The reliability indices, threshold and probability plots, global indices and GHT are similar to those observed with standard achromatic perimetry
Figure 3
Figure 3
Example of the printout obtained with the Humphrey perimeter for a SWAP test using the SITA algorithm. The reliability indices, threshold and probability plots, global indices and GHT are similar to those observed with standard achromatic perimetry
Figure 4
Figure 4
Example of the visual field index (VFI) plot. The solid line represents the estimated slope including all the exams. The dashed line represents the estimated slope for the following three years, considering that the same rate of progression is maintained. The rate of progression and slope significance are given along with the plot
See this image and copyright information in PMC

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