Purchase this article with an account.
Natalie Hutchings, Sarah L. Hosking, John M. Wild, John G. Flanagan; Long-term Fluctuation in Short-Wavelength Automated Perimetry in Glaucoma Suspects and Glaucoma Patients. Invest. Ophthalmol. Vis. Sci. 2001;42(10):2332-2337.
Download citation file:
© ARVO (1962-2015); The Authors (2016-present)
purpose. To determine the magnitude of the homogenous, LF(Ho), and the
heterogeneous, LF(He), components of the long-term fluctuation (LF) in
glaucoma suspects and in stable primary open angle glaucoma (POAG)
patients undergoing short-wavelength automated perimetry (SWAP) and to
compare the magnitude of the SWAP LF components with those elicited by
standard white-on-white (W-W) perimetry.
methods. The sample comprised 33 glaucoma suspects and 17 patients with
early-to-moderate stable POAG who underwent W-W perimetry and SWAP at
each of six visits over a mean period of 12.75 months (SD, 2.29). The
LF(Ho), LF(He), and error components of the long-term fluctuation were
determined between the third and seventh visual field examinations. The
intervening visual field examinations and the optic nerve head
parameters, derived both by stereo observation and by the Heidelberg
Retinal Tomograph, were used to confirm stability over the follow-up
results. The LF(Ho) and LF(He) components were larger in the POAG patients than
in the glaucoma suspects for both W-W perimetry and SWAP; the magnitude
was independent of the depth of defect and of the short-term
fluctuation. All three components of long-term fluctuation were greater
for SWAP than for W-W perimetry, both in the glaucoma suspects and in
the POAG patients.
conclusions. SWAP exhibits greater long-term fluctuation than white-on-white
perimetry. The usefulness of SWAP will be limited if the extent of this
variability is not overcome in future statistical procedures developed
to detect progressive visual field loss.
This PDF is available to Subscribers Only