Comparison of Humphrey visual field perimetry and new invented PC-based visual field testing system in healthy people and glaucoma patients
Abstract
Purpose
The aim of this study was to compare the visual field test in healthy people and glaucoma patients with Humphrey visual field perimetry (HFA) and new invented PC-based visual field testing system (PCVF).
Methods
This prospective study included 48 healthy people and 37 glaucoma patients who underwent both HFA and PCVF. Pattern standard deviation (PSD), mean deviation (MD) were compared between the 2 tests using Pearson correlation. Areas under receiver operating characteristics curve (AUCs) for discriminating healthy from glaucoma, sensitivity and cut-off value at 80% and 90% specificity of MD and PSD were determined in HFA and PCVF.
Results
MD and PSD were correlated in glaucomatous eyes (r = 0.48, 0.50 p < 0.002, <0.002). The AUCs of MD and PSD from HFA were 0.882, 0.903 and those from PCVF were 0.676, 0.813. The sensitivity at 80% specificity of MD was 81.1% in HFA, 43.2% in PCVF, with the cut off value of PSD at 80% specificity at −2.86 dB in HFA and −4.40 dB in PCVF.
Conclusions
MD and PSD data from HFA and PCVF significantly correlated in glaucomatous eyes. PCVF can be comparable to HAF for visual field testing system.
