New perimetric threshold test algorithm with dynamic strategy and tendency oriented perimetry (TOP) in glaucomatous eyes
نویسندگان
چکیده
منابع مشابه
Comparison between Tendency-Oriented Perimetry (TOP) and octopus threshold perimetry.
OBJECTIVE To compare the results obtained by a new ultra-short automated perimetry test known as Tendency-Oriented Perimetry (TOP), which is an algorithm based on estimation of thresholds from information gathered from adjacent points with those obtained by a standard bracketing approach. TOP is designed to save up to 1/5 of the time taken by standard strategy by presenting each stimulus once o...
متن کاملSpatial resolution of the tendency-oriented perimetry algorithm.
PURPOSE Tendency-oriented perimetry (TOP) is a new strategy designed to estimate the sensitivity of the visual field quickly, by using linear interpolation between test locations. This study determined the spatial resolution characteristics of TOP. METHODS A Monte-Carlo technique was used to simulate visual fields, and incorporated realistic amounts of subject response variability as well as ...
متن کاملPerformance of efficient test procedures for frequency-doubling technology perimetry in normal and glaucomatous eyes.
PURPOSE To validate the clinical performance of two new efficient threshold-estimation procedures for frequency-doubling technology (FDT) perimetry in both visually normal individuals and patients with glaucomatous visual field loss. METHODS Forty-one normal subjects (mean age, 48.3 +/- 11.6 years) and 50 patients with glaucomatous visual field loss (mean age, 72.7 +/- 10.0 years) were tested...
متن کاملMulticenter evaluation of tendency-oriented perimetry (TOP) using the G1 grid.
PURPOSE The G1-TOP program is a short automated perimetric strategy which sub-divides the G1 grid of 59 points into four sub-grids. Each point is tested only once, but each patient's response is used to modify that particular point and the surrounding ones from the remaining sub-grids. This study compared the results of the G1-TOP program with the Standard Bracketing strategy. METHODS Eleven ...
متن کاملPredicting glaucomatous sensitivity loss using perimetric color saturation test.
PURPOSE To predict future glaucomatous sensitivity loss using a perimetric color saturation test (PCST) that measures the color saturation discrimination threshold for six hues (red, yellow, green, green-blue, blue, and purple) at 9 degrees in horizontal and 3 degrees in vertical extrafoveal points. METHODS This new test was carried out on 31 patients (31 eyes) with early glaucoma or ocular h...
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ژورنال
عنوان ژورنال: Eye
سال: 2000
ISSN: 0950-222X,1476-5454
DOI: 10.1038/eye.2000.196