Rapid assessment of the visual field in glaucoma using an analysis based on multiple correlations

Abstract

We wished to determine which areas of the visual field contribute most strongly and most frequently to the deterioration of the visual fields in patients with high ocular pressure. The computerized analysis, using linear and multiple regressions of the findings in 382 visual fields, allowed us to select four test points sensitive enough to estimate the actual global sensitivity of the central visual field (correlation coefficient, 0.98). This system also allowed us to estimate the number of pathological points and even to classify accurately over 75% of the cases in terms of their normal or pathological condition, as well as to determine the depth of the defect. The remaining cases show that the deterioration, if it exists, is not significant. Requiring less than 1 min a threshold examination at these four test points enables us to acquire greater insight into the glaucomatous defect.

Development and validation of a computerized expert system for evaluation of automated visual fields from the Ischemic Optic Neuropathy Decompression Trial

“…The Ocular Hypertension Treatment Study used multiple confirmation fields to diagnose the presence or absence of a defect and provides an example of a method to deal with clinical detection of visual field defects [14]. More advanced models of visual field perturbations, such as those by De la Rosa and colleagues [15], utilize an approach for rapid assessment of glaucomatous field defects based upon multiple correlations. Although the IONDT computerized system cannot distinguish between short and long-term fluctuation when detecting a defect pattern within a single field, it does use a standard set of rules for classification and detection and thus provides for consistent identification and classification of defects.…”

Age‐dependent normative values for differential luminance sensitivity in automated static perimetry using the Octopus 101

“…A detailed test point arrangement in suspected scotoma regions is desirable for the detection and followup of glaucomatous VF damage. (Gloor & Gloor 1986;Weber & Kosel 1986), test location distribution in the periphery between 20°a nd 30°of eccentricity (Zeyen et al 1993;Sugimoto et al 1997) and sufficient test locations in the nasal, superior paracentral (Bjerrum) and blind spot areas (Rabin et al 1981; Gonza´lez de la Rosa et al 1990;Zeyen et al 1993).…”

Comparison of Diagnostic Ability between a Fast Strategy, Tendency-Oriented Perimetry, and the Standard Bracketing Strategy

“…Recently, fast strategies to quantify the visual field loss such as the Swedish interactive thresholding algorithm and tendency-oriented perimetry (TOP) have been developed [1,2,3,4,5,6]. For example, TOP reduces testing time by approximately five times when compared to standard BR.…”